OK
First Thing
You appear to have not got a default post icon set which is what would normally be in this column. Take a look at this forum
http://www.hoytroid.com/forums/forumdisplay.php?f=26 and you will see what I mean as the column has got the post icon in there.
Second Thing
Make sure that in your POSTBIT and POSTBIT_LEGACY you have the following near the top of the template
Code:
<table class="tborder" id="post$post[postid]" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" border="0" width="100%" align="center">
If it does NOT say width="100%" then change it to this as this is where your problem is.