I'm sorry for the delay. I'm afraid I couldn't delay making my husband's dinner any longer.
Could you please check the image that contains the gloves, just to make sure it's intact? It probably is, since it would have been replaced by reinstalling the game, but let's check to be sure. Navigate to Program Files\Virtual Families\Images and look for InventoryItems.png. You should see two views of the green glove, followed by two views of the red glove.
Unfortunately, if the glove is OK in that image, and is not present in the tool tray, there isn't a way to put it back at this time. We'll see if we can get this fixed, though.