Well, unfortunately, 7.0 is a BIG update. It would likely break everything you had if you even COULD carry over your save. Like, it's a massive update, with a new base and everything. Everything is pretty much different. It is likely that you should just start from scratch, and I know that sucks, but there's so much new to experience, I think it's kind of worth it.
Viewing post in Potential Version Issue?
When I went through this, it would give me the pa07_0011 folder, which I had to place in the game's directory. You may have other folders under a similar name. Usually pa[number]_[number.] If you have any other folders like this in your votv folder, delete it until the pa07_0011 folder is the only one in it.