Thingamablog

I'm using a custom-tag to display the same menu on
every page. In this custom-tag I use the BaseURL-tag.
But when I update the whole site it doesn't seem to
replace the BaseURL-tag as the links are all like, eg:
http://site-name/<$BaseURL$>/index.php. The html-code
seems to work fine if it's written in the template.
I'm using Thingamablog 1.0b4.