Glad it worked out. Keep in mind...
Never move or delete source files until certain editing is forever done.
Back up frequently, using Save AS, so older saves are not overwritten. That way you will have a number of versions of the project, each represented by a VPJ file.
If using a VP release that is working well for you, there's no need to upgrade. Newer releases can always be tested, unlicensed, to check out their features and quirks. If there's something you like, make the switch but retain any purchase registration info.
There's a six-month window for free updates. After that, updates cost money but a licensed version will continue to work indefinitely. Even a 'free' or 'trial' version will still function in most cases, with limitations.