In the Editor under either Window or Communications there will be a "Live Update" option. If it is not there you don't have the updatable version. You will need to contact URC to get the latest non-updatable version.

It depends. You can learn most codes from the remote of any product you buy, but it might not have all the discrete codes you would need. Your options there are to look here for a device file, use an older device from the same manufacturer and see if they work through trial and error or buy a cheap Harmony and learn the discretes through their database.