Forum Monitor version 0.2.5 is finally avaiable for download.
Changes in the new versions include a more complete error system, sound notification and some other cool things, check changelog for further details.

Download:
Windows (32 bit) binary
Source code

Maybe linux binaries will be avaiable shortly.

Changelog:
Version 0.2.5:
- Added a more complete error system
- Posts page codes ported to regular expressions
- In the forum’s config file, added a new attr “ReverseSearch” (values are 0 for false or 1 for true) that can be used to do backward search instead of normal in details detecting
- Forum generic details detecting (version, year, etc.) now can be done using two methods: Unique and Fields mode
- Code optimizations
- Added new tab “Notifications” under Tools->Settings with options to enable/disable sound and baloon message when new messages are detected
- Option “Message check interval” has a new validator that exclude numbers beginning with zero (0 or 002 are not valid intervals)
- Fixed a bug that caused random crashes after some minutes of scan
- Option “Message check interval” in Tools->Settings switched from milliseconds to seconds
- Settings dialog now can be opened without stopping the application.
- A sound is played when new messages are found
- Login parameters are now encrypted to url entities (security reason).
- Now forum year is setted to 0 if it isn’t detected (first there were random garbage numbers)
- Added option to hide warning when program is closed to tray