Is there a way of installing to a different directory?

For future reference, is there a way of installing to a different drectory?

Having invested a lot of time getting an effect that I was happy with, I installed the new theme expecting it to be created in a new directory, so that I could cross reference and copy across files, settings etc to retain the effect I wanted.

This was the case when we upgraded from 3.5.1. This time, however, all my hard work has been lost and I am faced with the torture of finding the fixes and fudges all over again!?

I used to be a massive fan of Atahualpa - now I am beginning to doubt my sanity.

Thanks
Graham.