1> are you registered?
2>did you select the right interface?
3> did you put everything where you wanted it?
4> did you want it at the bottom?
5> do there pants make my butt look big?
6> could you post a screeny showing the problem?
7> have you ever eaten a koala, seeing as yer an Aussie?
Custom interfaces are registered only. Without registration, you can change their look from the interface-gfx folder, but no position or stuff you do with interface maker.