First thing is to have ALL the accounts that were included in the BK showing that they were included in the BK.
For this I would do a written dispute (either faxed or mailed) with each CRA and include a copy of the discharge showing what was included (highlight the accounts you are disputing).
Get it accurate first rather than try to remove baddies that are accurate but you just want gone. From ther eit is PFDs, GWs etc - depending on the situation (not enough info to be specific).
Then you start to re-build - the BK forum can help there.