Maybe it's time to consider a 4000 tag license?
Better yet upgrade to Indusoft v8.0 and I'm fairly confident support will help you resolve any issues.
Curious what your issue is with the Alarms... I did find a bug with an early release of v7.1 where I couldn't use a tag in the alarm worksheet email address fields, but that has since been fixed.
I've run into several bugs over the last couple years with Indusoft. But I have to say, they have always provided a fix or a work-around.
Keep daily project backups then you can always roll back to a previous version.