Wow. Lot of stuff to take in here.

I picked up an inexpensive unmodded DS1052E
Software version 00.03.01.00.00 Hardware version 58.
I have the extended info screen but it's not clear to me which number is the firmware version. Is it the '3.01' above or the 'FPGA:03.07'
The Rigol site shows latest firmware for DS1000E as: 00.04.04.00.00.
If I install the latest 4.04 firmware, can the scope still be modded to 100Mhz, or will it have to be reverted to 2.02 first?
Is there a way to mod the 3.01 firmware without reverting to 2.02 (it's not obvious from looking through this rather long thread)?
If the 3.01 firmware can be modded, does it then make sense to update to the 4.04 firmware after the mod or will that remove the mod?