I need to know if i can have seperate global.asa files for seperate sub-domains, and therefore seperate application variables.

You might find it interesting to read a thread entitled "If LunarPages Does Not Support global.asa  . . .".  You'll find it in the Category "Webhosting Help" under the "Online Help Desk" section or try this link (if it works)

http://www.lunarforums.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=1;t=001013

I think you'll find it interesting! :-).  Thanks to me, you have your answer regarding global.asa!  

Honestly, since Tech Support only now realized that they support global.asa, this might not be the appropriate forum to ask the question.

Go to http://developer.chilisoft.com/forum and post a message in the category entitled SunONE ASP (as that is what ChilisoftASP is now called).  That is where I got my answer about global.asa in the first place.

And you are right, we really never answered your question entirely but up until yesterday, LunarPages didn't think they supported global.asa at all so you did get half an answer!

If you do get an answer at the SunONE forum, could you please post it here so others will be able to benefit from your findings?