Tried Fixing incorrect payroll - have made it worse

Hi, I had some trouble with the new STP 2 and how we process LWOP.  I have been able to fix most of them except for 1 particular month that I kept getting wrong (forgot to update the hours, forgot to reverse the super).  I've done several reversals and re-keys and thought I had it right but then my cash was unbalanced until I undid the last fix.  So now my cash balances but my employee's pay for that month is at zero and I can't reverse or delete any of them even though I've reported to STP.  If I process another payrun it will debit my cash and I will be unbalanced again.  I can't work out how to fix this and I've made a real mess of it ...