Nima
I could be wrong, but I don't think this will work.
My experience has been to set up different AOL server instances running on different ports, and point each instance to the same database (in the <instance>.tcl file).
If the only reason to have multiple instances is to have different designs, there is a way of doing this, but it is a bit of a hack and will affect performance because it involves effectively turning off the template caching.
It does work, though, and you can apply a different master templates to each community/subgroup and the way I implemented it, you can choose whether child subgroups inherit their parent's template or not.
If you want more details, let me know - although I hope I am wrong and there is another way :)
<Raad>
