Follow this link for using your wordpress header in bbpress

http://www.adityanaik.com/integratepress-part-i/

Notes: Edit your Wordpress CSS file to affect the BBpress style. You can just copy the default BBpress theme CSS contents and paste to the end of your wordpress CSS page, but get rid of duplicate tags otherwise your css will be all screwy. I still haven't figured out how to get the padding/margin to actually affect the page.

Avatar Plugin Notes

from http://bbpress.org/plugins/topic/avatar-upload/page/2/

Regarding the avatar going over the RSS feed hyperlink on the author page.

The thread author div (.threadauthor) is set with overflow: hidden; in the CSS, which means that it can never be longer than the post content div (.threadpost). This means that the extra content in the post author div gets cut-off. Unfortunately, the avatar image does not get cut-off and overhangs into the next post in the thread.

In the example posts you linked to, the post content is not long enough to push the bottom of the post container beyond the height of the post author container when it has an avatar in it.

You can solve this by changing the kakumei CSS file a little.

Oh, but first of all, you might want to add line-breaks to the code you posted (in the post.php template), like so...

Then in style.css, scroll down to #thread li and add a line, so it looks like this:

#thread li {
    min-height: 200px; /* <-- add this line */
    padding: 1.5em 1.0em;
    line-height: 1.5em;
}

This sets a minimum height for the post content div - I made it 200px to be sure it stretches beyond the height of the thread author div. Warning: this will only in fully standards compliant browsers. Certain "Browsers Which Shall Remain Nameless" will not understand min-width -- there are hacks to circumvent this somewhere, but you'll need to look them up yourself, I'm afraid.

Oh and what he means by you'll need to look them up yourself (freaking people and their hate for microsoft, just say it already, but no, you have to learn, whatever) go here

http://www.cssplay.co.uk/boxes/minheight.html

They explain the tag to use with IE, which is

height: 200px;

Just add that to the #thread li ( tag in your CSS

Update:: And scratch that IE fix part, apparently this doesn't allow the page to grow with more text.