some roms have cwm included, seems Pooka's does not,
whatever version was installed before Pooka's should still be there
just use reboot option to recovery, to get to cwm
you could try just restoring system or user data, but I think the backups are not saving correctly.
install rom that nandroid was made on
cwm>backup and restore>advanced restore>choose nandroid>restore data
Yes use FAT32My SD card is backed up so the only issue with formatting is copying everything back on (9 or 10 GB). What disk format does the Droid use anyway? I'm just wondering if it's possible and if there would be a speed advantage to formatting and reloading the SD card in a card reader directly on my computer rather than using the phone. It seems like reading/writing to the phone via USB is slow for some reason, at least when writing the SBF.
I'm sure the sd card transfers will be faster, but transferring 10gb will take a little time, a hour or so if using usb 2.0, longer if only 1.0
some sd card optimizing can be done, read Increase the read/write speed of the SD card on your rooted Android
other things that can be done
check md5 of rom, bootstrap, and gaaps
try a different sd card
try a different rom like MIUI DefX by Wizard0f0s