This program has gone through a few iterations since it was originally developed. In 2019 it was rewritten to remove the requirement for custom tables to track the quote details, which simplified the requirements and reduced the cost for the users.
The important thing to understand from a user perspective is this is a quote renderer. It takes the products & services from an Opportunity and converts it into a Quote that we can make some adjustments to through the quoting console.
This is different from some popular quoting programs that a quote inside of its application and then creates the opportunity in Act!. This goes in the opposite direction, creating the quote from the Opportunity.
Setup Process
1. close Act!
2. install software
3. Launch Act! and register the software or the trial
Once you're back into Act!, go into the Opportunity section and select the Detail View of any product to check that the Quoting4act label is there beside the layout selector.