Inspired by people doing things the hard way in another thread I decided to post a simple way to do this. Create a bookmark called MyPosts, or whatever you want. Then edit the URL and set it to this:
javascript:document.write ('<html><body><form action="http://namepros.com/search.php" method="post" name="vbform"><input type="submit" class="button" name="dosearch" value="Search Now" accesskey="s" /><input type="hidden" name="s" value="" /><input type="hidden" name="do" value="process" /><input type="text" class="bginput" name="searchuser" size="35" maxlength="20" value="primacomputer"/></form></body></html>');
Replace โprimacomputerโ with your user name. IE may honk at you about something not handling something, but just ignore it. Now when you click this bookmark you get a small form with a Search button and your user name. Click search and away you go.
Perhaps this could be further automated with a submit() call?