190mb is kernel
249mb is emmc. might be bigger for me because it's 8gb root and 21 MyDocs

so run these command

cd "%ProgramFiles%\maemo\flasher-3.5" (this is to load up flasher)

flasher-3.5.exe -F RX-51_2009SE_2.2009.51-1_PR_COMBINED_MR0_ARM.bin -f (this is Kernel image)

flasher-3.5.exe -F RX-51_2009SE_10.2010.13-2.VANILLA_PR_EMMC_MR0_ARM.bin -f (this is EMMC image)

make sure bold bits match your downloaded file


edit: this is what would happen if you flash it the wrong way around
http://talk.maemo.org/showthread.php?t=67691