At a quick look I would say you have just a couple of display issues although mainly it’s fine.
The link colour on that top bar (when not logged in) is hard to read. That is probably coming from your WP theme bashing the forum ‘a’ tags.
You might have some table definitions in your theme CSS that is also adding a lot of padding to table cells. You might want to reduce that a bit.
Hope it goes well for you.

please tell me how to resolve the issues you are talking about.

your site isnt coming up for me… at least tired of a waiting minutes after trying a few times…

would suggest using firefox and firebux to debug css issues like this with your wp theme…