> When I was working with 2to3 this summer I was running it via python3,
> so I think the patch should work
Code in the patch uses print as a keyword (2.x), not a function (3.x).  How does that work?

> however, if I've submitted it to the wrong place or the wrong branch,
> where should I be looking at to ensure my code does work on 3.2 and
> is submitted to the right place?
This tracker is the right place for bugs relevant to any CPython version.  To ensure your code works on 3.2, just apply the diff on a 3.2 checkout.  More info on http://www.python.org/dev/ (especially http://www.python.org/dev/patches/).

> In regard to the import gvgraph, I wasn't sure what to do with it
If the implicit relative import doesn’t work, as I suspect, sys.path.append(os.path.dirname(__file__)) should be enough.

(Cheers from a fellow GSoCer, by the way :)