Have you tried clearing the data/cache from the Market app in Manage Applications?
Technically, flashing a full stock SBF is what removes the red logo.
Look at mtd_erase_blocks in this file... My C is quite rusty so I can't help much than to point to the file......
What kind of email? Gmail? Normal email app? What type of account? Pop? IMAP? Exchange? I have no issues with gmail, imap nor exchange.
Not sure how it's done through Rom Manager, I prefer to go into recovery myself and install things... but you install it just like you would a ROM
Oh yea, and after installing GPA16, if you go that route, make sure to wipe data/cache/dalvik-cache in RZRecovery.
I personally disagree with using S1C... I much prefer using MotoCache's method on these forums... do a google search for 'Root droid any os' and...
Separate names with a comma.