please help: DelphiX sprite

I have two problems with DelphiX sprites, I'm using
DXSpri{*word*249}gine and TImageSptite:
1. I need to resize TImageSprite, but don't know how. I thenk I
cannot use another  sprite besause it's an animated picture.
2. How can I trap the "OnSpriteClick" event for TImageSprite?

Any help will be appreciated.
Thank you in advance.