I though I'd pass this along, the solution was courtesy EvilHomorClone (thanks!).  First step is to download the following from TrippLite: PowerAlert30Vista.exe

Right click the file and select Properties, click on the compatability tab, check the 'run this program in compatability mode for:" checkbox and select "Windows Server 2003 Sp1".  Press OK.

You'll need to make sure you have a Java Runtime properly installed prior to executing the installer.  I installed one from SUN, just search online and you'll fine it.

For me the program installed perfectly, EvilHomerClone had to manually select the Java executable.