JJOS 3.15 Question

I found what seems to be a good deal on an MPC 1000. The seller doesn't speak english very well though, and I'm having trouble confirming which JJOS is in fact on there. He says it's version 3.15, which is the free version right? Which means I can't save?

However he also says it's the full paid version and that you can save?

I'm new to the JJOS thing, so im a little unsure...

Everything you need to know is here:

http://www7a.biglobe.ne.jp/~mpc1000/

You can save with the free version.

With the OS2XL version, you need to pay for a password in order to save.