It's released.
Source and exe are here:
http://www.diyefi.org/files/freetherm/FreeTherm-0.6.zip
Changes for 0.6 are as follows:
- Added output of all parameters to C file
- Swapped temp scales to enum
- Made app version appear in title and output files
http://www.diyefi.org/files/freetherm/
Fred.