I merged my QBO and QB Pro into a single file with these guys:
quickbooksrepairpro.com
I needed to make a backup for pro.
I needed to export QBO to "desktop"
I paid them their fee and the took the files.
a couple days later I got one file back with ALL the datain one file.
uploaded it to QBO as a new company, setup my prefrences (HIGHLY recommend two screens, open the original QBO on one screen and with another browser on the other screen)
Then after a week of using the merged file I deleted the old QBO.
sure its a pain to setup incoice templates and a few other things... but worth it
