1. No, you can only import the data. You'll have to re-create the forms
2. I think so. Haven't seen any issues on that reported here in the forum, but you can call tech support (they shouldn't charge you for this) and you can ask them about this spedifically. you can also down load the 30 day free trial and see if it works on it.
3. Synching as a specific function doesn't exist in FileMaker. There are ways to set this up. The process can be as simple as replacing the file on one machine with a copy of the file from the other up to very complex processes where a script does most of the data merge, but flags certain issues for human interpretation. This is because Filemaker can be a system of many different tables with data edited by many different users, thus some "synch" operations can get very extreme.
In your case, this will probably be on the simple side, but it all depends on how many people will be working on your database at the same time and how complex a design you come up with.