Hi Nancy,
First of all, I recommend that you install TC 7.50 on both machines to prevent conversation problems.
1. There is no way to get a project suite from SCC. You need to get it by using an external SCC tool. We have an appropriate suggestion in our DB, and your message has increased its rating.
2. TC automatically tracks if you've made changes on another machine to the item you're checking out and asks you to reload the modified item. There is no need to execute the "Get Latest Version" operation. If this is not the case, please provide us with a detailed description of all the steps leading to the problem.