If you try SSMaHo version 0.0.3.2 it works to reroute manil2.exe to open G-Alarm when clicking on the clock. I just tried it and it works. Just make sure you follow the instructions to a T. Now if I could only make it open SBSH Calendar Touch when I click on an appointment or new entry for the calendar buttons.
http://forum.xda-developers.com/showthread.php?t=493810
Oh yeah, you don't have to have it open up G-Alarm, the others that had purchased the Master Alarm program can use the SSMaHo program the same way, you just go to the .exe file in the corresponding program folder.