Have further processed the image and then reprocessed. The best overall result has come from Registax Version 6 which is a lot easier to use than the earlier version.
The one feature which has allowed this 80mm 480mmFL to produce reasonable image is the Resample feature which is slightly better than 2 x Drizzle.
I tried to resample at 4 x bit it was really pushing the limits of the computer. With better cooling I may have another go.
Enjoy -
http://waelect.com.au/mswhin63/Moon%...07_06_Moon.png