Wrong keywords

Hello,

When I look at my website through google webmaster tools, it offers me an option to view keyword significance (which I'm sure many of you are aware of). My problem is that the keyword list is not composed of keywords I want. It shows words like "post, forum, bookmark, posts, digg, del, furl" etc all showing up more significant then what my board is actually about.

Does anyone have any suggestions on how I can fix this? I would like the keywords on my website to more closely reflect what my forum is about, not just what you can do on the forum.

Please see:
Keywords in Google Webmaster Tools for Forum