NEW MYOB AccountRight File

Hello - here's a tricky one (I think!)

We are using a new MYOB AccountRight File since the beginning of the financial year. I had to do a payrun on the old file in July as the new file was not ready yet at the time. I have not reported this payrun to STP (nor any since). My accountant has instructed me to now mirror the payrun from the old MYOB to the new MYOB (both AccountRight) and then report STP.

My question is: As part of the payrun, MYOB will prompt me to create an ABA file. If I create it, it may affect our bank ledger as an ABA that is 'not cashed'. If I do not create an ABA, then I will have a series of transactions on the system (in Prepare Electronic Payments page) 'waiting' to be part of ABA file. How do I then get rid of them (safely!)?

Please help. Thank you.

Please feel free to clarify with me any points which are not clear.