Can I have an archive link not based on the perma link structure?

Hi.

My permalinks are not working and I can’t bend my mind around why. I know it’s not a server issue because I set up a basic wordpress blog on the same host and it works fine.

So now I want to work around the problem and have the permalinks be just a link to the blog with an anchor to the post in question.

Changing the permalink structure to /#post-%post_id% works fine, it does what I need. But now the archives don’t work since that link is based on what I put in the permalink structure.

How do I set my archive links to be like
foo.domain.bar/?m=200510
while my permalinks stay
foo.domain.bar/#post-15
?

Kind regards / Olof