These are taken verbatim from the rules for those who lost theirs and can't remember how to play this game. See my other game rules here.
This game seems to be discontinued. Nope, I can't find any more myself. Sorry! But you can TRY EBAY...

UNO HEARTS Ages 7 and Up 2 to 8 Players COMPONENTS: 108 Cards (includes 2 extra cards) 24 HEARTS (0-23) 24 YELLOW (0-23) 24 PURPLE (0-23) 24 GREEN (0-23) 10 WILD DRAW (1-10) Please remove all components from package and compare them to the components list. If any items are missing, please call 1-800-524-TOYS.

OBJECT: Avoid taking point cards. The game ends when one player reaches 60 points. That player, however, is not the winner! The player who has scored the FEWEST number of points at game's end is the winner.

OVERVIEW: UNO Hearts is played in a series of hands. Each hand is comprised of 13 rounds called tricks. To complete a trick, each player must play a card. When everyone has played a card, the player who played the highest numbered card of the lead suit (color) "takes the trick." That player must now lead a new card from his hand to begin the next trick. Play continues as above until all the cards have been played from everyone's hand. One "hand" has now been completed. Players add the values of all the point cards in their tricks (if any) and write them on a piece of paper. The player to the left of the previous dealer shuffles the deck and deals a new hand. Play continues until one player reaches 60 points.

POINT CARDS:
The cards listed below have point values which, if included in your "tricks," will be counted against you at the end of each hand.

HEARTS Each hearts card counts as ONE POINT. (24 in deck)

13 YELLOW This card counts as 13 POINTS. (1 in deck)

RULES: Choose a dealer and deal 13 cards to each player. Place the remaining cards face down on the table to form a draw pile. The player to the left of the dealer now leads a card, face up, in the center of the table. In turn, EACH PLAYER MUST MATCH THE SUIT (NOT NUMBER) THAT IS LED, if possible, by playing a card of the same suit (color). If you don't have the suit that was led, you may play any card in your hand. When everyone has played a card, the player who played the highest numbered card of the suit led takes aft the cards that have been played.

	These are "pass hand" cards. They have no point values but if either is played on a trick, players must pass their entire hands to the player next to them after the trick. The direction in which the hands are passed (right or left) is determined by the player who takes the trick containing the 8 purple or 8 green. The pass must occur after the current trick but before the next trick begins. (If both 8 Pass cards are played in the same trick, treat as if only one of the 8's was played).
WILD DRAW CARDS WILDS COUNT AS ANY COLOR	These cards have no point value. They are numbered 1-10. When played (or led), they count as their numerical value in one of the four suits (hearts, yellow, purple or green). The suit is "called" by the player of the Wild Draw card with the following Restrictions: 1. A Wild Draw card does NOT change the lead suit. All players must always match the lead suit if possible, regardless of what Wild Draw cards are played. 2. A Wild Draw card called a heart is not worth any points. 3. You can only play (or lead) a Wild Draw card as a suit that you do not hold in your hand. EXAMPLE: The 4 of hearts is led. The next player does not have a heart in his hand. Therefore, he has the option to play any card in his hand. He chooses a Wild Draw 8. If this Wild Draw 8 is called purple (assuming he has no purple cards in his hand), it will not take the trick. If this Wild Draw 8 is called a heart, it will outrank the 4 of hearts and could take the trick.
WILDS WIN TIES	A Wild Draw card outranks a card with the same numerical value if the Wild Draw card is "called" the same suit. EXAMPLE: A green 7 is led. A Wild Draw 7 is played by another player and "called" green. The Wild Draw 7 (green) will outrank the natural green 7 and take the trick (if no higher numbered green card is played in that trick).
DRAW FROM THE DECK	When a Wild Draw card is played in a trick, the player taking that trick must draw from the draw pile the number of cards indicated on the Wild Draw card(s). These cards are turned face up for all players to see. He must then place those cards from the draw pile directly into his TRICK PILE (NOT HAND). In games with more than four players it is possible to deplete the draw pile. If this happens, simply ignore the draw command.

PASS THREE CARDS	After the cards are dealt, each player must look at his cards and immediately pass 3 cards face down to the player on his left. You may not look at the cards passed to you until you have passed your cards. All players now pick up the cards passed to them and play continues normally.
SHOOT THE MOON	For more advanced players, try the "shoot the moon" variant. If you are the only player to take points in a hand, you have "shot the moon" and all other players receive 20 points each while you receive none. As an option, you may reduce your total score by 20 points.
	41010

These are taken verbatim from the rules for those who lost theirs and can't remember how to play this game.