Gallery appears to be left aligned where as wordpress theme is centered

Hi all,

First up let me just say great software, works like a charm and very versitile.

However I have an issue when using a certain theme in Wordpress:

http://www.neoteros.com/?page_id=35

That is my site and as you can see my theme is centered and fixed width. When the page is maximised on screen the gallery is not centered with the header.

Is there any way I can get gallery to align from the centre rather than the left or is it something I need to edit in the wordpress theme?

Sorry I am still new to all this and building of sites in general so please forgive my ignorance if it is sonthing simple I have missed.

Regards,

Adam - Spikedog

EDIT:

OK so I posted this question in the wrong forum, and now I am able to search and find topics similar to mine. However I have tried everything I have found in these topics and found that none of it works. I think I must be doing something wrong because other people have had the same problem but have managed to fix it.

I have tried changing the width in the wpg2 output to various values from numbers to percentages and none even seem to effect my page at all. I have also tried searching through and changing the .css files of my WP theme and the best I could do was to change one of them to 100% and while it sorted the gallery out it screwed the rest of the site up.

Please people I am getting to the end of my teather here, I simply don't know enough to be able to make any other further changes and am just stabbing in the dark with my changes now and am screwing more things up. Please if anyone could help that would be great.