Timing Belt

4 cyl Front Wheel Drive Automatic 160K miles

In my haste, I forgot to mark the position on the original timing belt when I removed the water pump. Stupid me. If that wasn't bad enough. The crank and cam were not positioned to any timing marks prior to removal. I do want to be clear though, The cam and crank have not been moved at all since the removal of the belt and the timing was fine when I took it off. So How do I go about putting a new belt back on this? I can post pics if needed. This is the single overhead cam type with two guide rollers, one being spring tension type. Please help! Need my car back. Wife is agitated.