I am not seeing the issues
TMXS posted about on my work PC. It is running IE6.
The logo, and most of the site, has a very "Cutie" feel to it. For a tech forum it feels almost too kiddish. It is a very good looking and well done skin, however I am not sure if it is suited to the intended audience.
Some of the colors make it hard for me to read some items. My main example is the image that links to the register.php file, the white on light blue is hard on my current monitor.
Speaking of this area, it almost seems a waste of the space. The image tells nothing about the site, and contains no keywords or other search engine friendly stuff. Ether put more info in the area and add an alt= tag or drop the image and replace it with a text blurb.
The forum icons keep with the "cute" feel, and go well with the theme of the site.
Edit - I just ran into the posted alignment issue, not on the forum home though.
http://www.blindnerd.com/forumdisplay.php?f=14
You have a good amount of forums for your traffic, but I would not consider adding any more for a while. Build up your content with what you have first.
So far it is a great looking forum, great job