Ok, I have a very specific question/inquiry...

I can setup multiblogging using subdomains IF the "blog root" = DocumentRoot (ie /whatever/path/public_html/ )

BUT if the "blog root" != to DocumentRoot it won't work.

Example:
domain.tld => blog root
BLOG.domain.tld will work correctly

BUT IF
domain.tld/BLOGROOT/
BLOG.domain.tld will not work

OR IF
BLOGROOT.domain.tld
BLOG.domain.tld will not work.

I can't find a way to map BLOG.domain.tld to a directory or another sub-domain, the only way I found to map subdomains is with "A" and it works fine.

Need help from anyone who was able to do just what I am trying to achieve.

Thanks a lot!!