I don't believe you can successfully serve WordPress files from root while giving WordPress its own directory, if you already have a site located in root. Don't hold me to it, but I'm not positive that would work out. Have you given any consideration to installing WordPress on a sub-domain as an alternative? Example:
awareness.yoursite.com - or - appropriate_name.yoursite.com
That way, your blog sites in sub-directories would look like:
awareness.yoursite.com/aidsblog - etc...
 I'm not sure if this will be of any assistance or not, but take a look at the Create A Network documentation in the Codex and see if it sparks any ideas. I'm not very well acquainted with the details of what can and can't be done with a network setup, so there may be some options there I haven't mentioned.