[Help-Solved] Main page is perfect, other pages are off

[TDT-Alpha]

Hi all!
I'm working on a small website for a client of mine.
I designed and coded it for their purposes..
Now, I coded the theme (my own theme..) and based myself on the main page, the "index" page.
The problem is when I make a new page - that page will be off..
I don't know how to explain this so see for yourselves:
Main page: http://Beki.TDT-Alpha.com/
Other Page: http://Beki.TDT-Alpha.com/contact/

How should I fix that?

edit:
Due to 29/03 site is temporarily offline
in 4 hours since edit (13:00 forum time) the website will be up

edit2:
Site is back online! (settings up permissions and fixing little issues)
The problem wasn't solved yet...


EDIT3:

Problem Solved!
The work with relative and absolute URLs is a mess with GS;
- I used './images/' which sometimes went to root and then images,
and sometimes went to template's directory and then images.
I replaced all absolute and relative URLs with full URL (www.) and it now works just fine ^_^

Can someone direct me to a tutorial about URL types, uses and examples?
Thanks!!!