Managing user access

Hi All

i have been trying to set up access for an employee to assist with accounts for me. I have called the help line but very difficult to understand and after 1.5 hours on the phone still hasnt fixed the problem.

I require this user to have access to sales, purchases, payments, inventory. i have managed to get this done but when i give access to allow payments for suppliers and the bank to upload ABA files they have access to payroll.

i cannot have any payroll access at all, how can i get user access to assit with all functons but not see or access  any payroll.

if i have payroll waiting in prepare electronic payments this user can see it all until i create an ABA file. Your help would be priceless as im going around in circles. thankyou so much regards Mary Clarke