Finding the app from within the phone

[Tomween1]

I have downloaded 2 apps which show up under "Manage Applications" but then I can't find them anywhere else. 1 is a theme pack called Unpack for Android. This is an app letting me use Froyo 2.2 icons and settings on my v2.1. The other is a basic theme pac. I was able to find this pack once, but not any more.

Any thoughts?

Thanks in advance