Before I try this and get myself into trouble, I thought I'd ask first to clarify what I'm finding in the codex and the forum...
I've got two WP installs in sub-directories of my site: /blog and /comics
I thought I'd save myself trouble later by combining them into a multisite. My questions are:
1) I believe that to do this and keep my sub-directory urls as they are, I need to create a new WP3 install in my root and then import my two installs into this one as part of the network. Am I correct that i can't just make one of my existing installs a multisite and import the second one into the first?
2) Also, if I do make a new root install and import the two existing installs, will all my image upload urls be the same? As my sites are image heavy I don't want to have to do any image url rewriting.