SpriteAnimation won't take my SpriteCollection

[AGP]

Sorry if this sounds stupid, but it's my first time and 2d Toolkit has changed so much since this video:http://www.youtube.com/watch?v=lwJaODiJc9g

Anyway, the first time I created (as per the video) the SpriteAnimation after creating my SpriteCollection, it seemed to scan my project and not find my SpriteCollection. Now, all I get is 4 DemoSpriteCollection as options for my SpriteAnimation, which sucks. So, how do I associate my SpriteCollection with the SpriteAnimation?

[unikronsoftware]

Did you commit your sprite collection after creating it?

[AGP]

I probably hadn't, no. It works now. :- ) Thanks.