I work for a school district and we host blogs for teachers on our web server. When I set this up last year, it looked like wpmu was in early development, so we went with parallel installations of Wordpress 1.5 instead. Currently, I have about 80 blogs set up.
I would like to migrate all of these to a wpmu installation, but I'm not sure what the best approach is. I'm thinking that the most pain-free way would be to match the wordpress and wpmu verions (either upgrade the individual blogs first, or start with an old version of wpmu based on 1.5).
Any suggestions for the best way to approach this? I'm kind of hoping for a magic button somewhere that'll say "grab this wordpress blog and incorporate it into this wmpu installation", but I'm also not afraid to do some real work.
Thanks,
John.