sorry to hear that guys. I have it installed on a 2003 SBS server, and it worked fine.
Of course, I'm using the SBS Suite, and used ADNM to install to my clients and server.
One thing that you could have done after installing the ADNM (if used) was to open the AMS Maintenance tool and import the license file. That way, you don't have to re-install.
I guess that's not going to help you now, since you have already removed the program.
So, you try to install, and nothing happens, and there is nothing in the logs...
Is there another A/V product on the machine? Longshot: Is DEP turned on? Have you checked the task manager to see if there were several installers running at the same time?
If you are going to use the suite product, maybe try installing that, then push the server installation package onto the server using ADNM.
Otherwise, I don't really have a clue.
Hopefully, another avast guru will be able to help.