I'm getting problems setting up OnTime for one of my customers on their shared hosting. My installation runs on my own servers so this isn't a problem i've seen before. I think it's to do with the fact that the shared hosting doesn't have Full Trust switched on and there are assemblies that are used that need the ...

Debbie, it's never been the case that it's hard to upgrade.  It's very easy.  Just download the newest version and run the setup.  The next time you run OnTime, it'll upgrade your database. There is some coordination between users needed for upgrades as everyone has to run the same version, but it's very easy to do the upgrade on ...