Root *Help - Problem access the folders!*

Hi :)

I have rooted my HTC Desire with UnrEVOked.
When the buy a app, in Android Market, which folder is the app in, in the 15 min?

Is it in "/data/app-private"?
If it is, I cant see the app.... Its pretty wierd, i think..

Please help :)
What am I doing wrong?