From memory:
when I was working in Delphi, we managed to put together one simple method so that all of us had the same packages installed. It involved some repository containing the libraries and some registry files that we were supposed to load into our registry. It worked fine as we were all under Windows XP.
However, AFAIK, the registry entries under W7 are slightly different.
You could, however, ask someone to make an identical copy of the WinXP and run it as a virtual machine on your W7.