Ok
heres the thing 99% of the time when there is a problem putting in the number. The users gets confused between 0 and OH. I think this is what you are doing.
You cannot make them all OH or all 0. Look very carefully at the number, there is a difference between 0 and OH, make sure that you are putting it in correctly.
Use a magnifying glass.
Make sure THIS is the sleeve that came with your current Vista.