Originally Posted by Vogie
I risked and try that.
result => It's worked HoHaa
It worked because CSC files, Modems (Phone) and .pit settings are totally firmware agnostic. All three work with both Froyo and Gingerbread interchangeably.
The pit file simply tells Odin how to set up the partitions. The CSC is the localization info and the Modem is the radio. Both the CSC and the Modem can be flashed via Recovery after install, so there was no real need to flash them at the same time, but it didn't appear to hurt. Likely what happened is they just flashed over the modem and CSC installed by the PDA file.
However, you may want to check in About to confirm the JVK modem is what you ended up with.