Manual Override???

I use a Zune, and the Zune software, and I would really like it if I could upload my previously played songs into last.fm.

There are two programs for zune which can scrobble future songs (after you download the program) but not songs that you've listened to already. Every time I open Zune, and see that I have 5,500+ songs there, I desperately want to be able to put these on Last.fm.

One other problem is that Zune, at the moment, i believe does not support plug-ins.

I know a manual override to put these songs in would be tedious, but I feel like if its the only way that I can put my Zune songs onto last.fm, it would make a nice addition.

The negatives with such an ability is that people could model their profiles to how they want them to look...but I don't really know what the point of that is.

Would this ever happen, or is this just wishful thinking?