Fresh install not working(Sub Domain)...

southdreamz

I have installed zenphoto successfully, but i can able to access admin part, but not working front end gallery. it is giving:

Zenphoto Error: the requested object was not found.
Please help me!.

* I have only one album with 2 images.
* Installed sub domain gallery.southdreamz.com
* server dreamhost
* php 5

southdreamz

i have re-installed & works fine!!