Flash programming tools usually have an "archive" option. You can
save the current flash image from the BIOS, to your disk, and then
feed this to Mylogo. You could also check the CDROM - since the
manual says P4PE has a "crashfree" BIOS, there should be a .rom
file or similar on the root level of the CDROM. Have a look there.
Either you use Asus Flash to save your current Bios from EEPROM to file
("Save current BIOS to a file") or you download a fresh BIOS file from
Asus FTP: