The version is on the splash screen. when it comes up you can see "Version 1.3". I don’t think the file version changes on the exe.
When asked if you want to update and the software does not update you can try downloading and running THIS PATCH. After downloading and running the patch, re-open the DeerDays software by clicking the icon on your desktop.
If that does not fix your problem (which it should) then you need to do the following:
Reinstall DeerDays:
1. Start -> Settings -> Control Panel
2. Add or Remove Programs
3. Highlight "Deer Days" and click "Remove"
Once that is complete you need to install DeerDays. Refer to THIS PAGE for further instructions.