I have fixed some of the problems reported so here is a new version. The fixes are:
Changes to the surface wizard. This was actually done a while ago, but somehow fell out of the V2.76 code. I hope its back to stay :-)
The circle cut wizard had some problems with the lead-in cut for tool comp. It was correct in the Preview display but wrong on the Post code. The tool comp radius was being calculated as toolR*1.15, it should have been toolR*1.5
The thread screen had a couple bugs, a redundant start move.
I found some junk in the Bitmaps folder so the zip file is now 300kb smaller.
Download the zip file and unzip it into the Addons folder.
April 15, 2008- I removed the file, a V2.78 is now loaded to a new topic