can I use "URL alter" with "prepopulate" module?

Issue Summary

hi,
this is a very specific question. I have prepopulate module installed, and with it I'm preselecting a taxonomy term from the url on node create forms. My url looks like this:

http://example.com/node/add/story?edit[taxonomy][3]=11

where "11" is the term id. I want it to look like this and still do its job:

http://example.com/node/add/story/11 (or preferably http://example.com/node/add/story/[termname], but maybe that is too much to ask for)

I tried aliasing the path, but of course it ruined the whole prepopulate thing. FYI, I don't need this on a mass scale; I have two terms that I need this rewrite for.

Can URL alter do this? Also, I'd rather use the URL alter interface than put anything in template.php or a custom module.