Question template breaks after post redirect

The forum features all work well on my site, but after I post and it redirects, the whole page breaks. The forum seems to 'jump' up and cover the divs above it. The template is a custom template, not much to it.

Using Joomla 1.5.10
CB 1.2 RC4
Kunena: latest stable release

Site page:
www.tkeaoalumni.org/index.php/member-forum

Any help would be greatly appreciated.

The administrator has disabled public write access. Can't see the problem if you can't post.

Yes, please give us a Demoaccount to login. You could also try first the following,
edit kunena.forum.css (you'll find it in your chosen template)

and change

#Kunena #Kunena_top td {
background:#FFFFFF none repeat scroll 0 0;
border-color:#5182A4;
border-style:solid;
border-width:0 0 3px;
color:#000000;
margin:0;
}

to

#Kunena #Kunena_top td {
background:#FFFFFF none repeat scroll 0 0;
border-color:#5182A4;
border-style:solid;
border-width:0 0 3px;
color:#000000;
margin:0;
height:35px;
}

or to

#Kunena #Kunena_top td {
background:#FFFFFF none repeat scroll 0 0;
border-color:#5182A4;
border-style:solid;
border-width:0 0 3px;
color:#000000;
margin:0;
height:35px;
padding-top:20px;
}

If this helps you can change this 20px until it looks good enough.