Yeah such situations are embarrassing... Never mind my previous post, I managed to get it working. I still dont know how to use the relative path for my icon though. I mean, I dont know where I should place the icon... when I use the "/_layouts/images/ribbon_blog_32.png" form, I can't figure out where the _layouts path is. Or, if I'm supposed to create it, where am I supposed to create it. Oh well, I guess I'll figure that out as well, at some point.
The following code works like a charm anyways:
<?xml version=”1.0″ encoding=”utf-8″?><Elements xmlns=”http://schemas.microsoft.com/sharepoint/“>