After getting Beerkan's firmware on the Spica I didn't like a few things. Went over to samdroid.net and took a look through the forums.
I found this first -
here. Which seems to actually ROOT the phone. That's the LKmod 2.02.
Followed those instructions to a T and tried doing the Apps2SD link at the bottom. (
here - <3 Google Translate

) For whatever reason it sort of works on my SD card. Some things are ON the SD card and others aren't. I was having problems with the SD card being read via a reader on my PC so I *think* that was part of MY problems with it.
Then I moved on to the Samdroid mod. Which is
here.
Oh and apparently before you do this your supposed to unlock your phone (so you can use it with multiple providers I guess). I didn't do that and it still worked. Didn't have any real problems doing it either. *shrugs*