If I understand your question, you can open the Payments module and see the next cheque number. If it shows up as 1000 then you would normally put cheque 1000 into the printer.

If you have ordered new cheques and renumbered your cheques higher eg. starting with 2000, then just change the number to 2000 and when printing it will ask if you wish to start the sequence with that number. The next cheque will be 2001.

If you need to move the cheque number sequence down to 500 then go to Setup, Reports & Forms, Cheques, pick your bank account and change the number at the bottom.

I don't fully understand your reference to "business version" so if I have not answered correctly, please elaborate on what you are trying to accomplish or learn about your system.