Thread:Project:Support desk/Help with template, please!

Hi! I've created a welcome template on Wikipedia, w:Template:PhyWelcome, but it doesn't work properly; the problem I'm experiencing is described in detail on w:Wikipedia talk:Welcoming committee/Welcome templates. I have no idea of what it is that is causing the problem. The template is basically just a modified copy of w:Template:MedWelcome, and that one is working just fine. I'm not used at all to MediaWiki's ParserFunctions (which the template contains), but I was hoping to get some help here.