The dates you mention are refering to different versions of the software.
Correct me Tony if I'm wrong..but
VCarve Wizard 3.1 (May 2005)...turned into VCarve Pro.
The latest and greatest is Ver 3.102 Aug. 2006.
There have been so many enhancements that the earlier software will not run files generated in VCP 3.1
I will convert them over for ya later on...gotta go to work.
Tony will probaly beat me to it.