Hi Dennis,
Sorry I haven't replied to this thread, I've been away in the past few days.
First of all you will need to stack your images in Registax and then save it as a TIFF file. You will then need to open it into Photoshop and do a couple of adjustments (levels, curves) and whatever else you like. As an alternative you can process your stacked image in Registax but only do this if you don't have access to Photoshop or another photo processing program.
If you have never used Photoshop before it may be a bit daunting so if are having any problems, If you like you can send me a PM or just post here.
Hope this helps,
