Yes, wouldn't it be safest to use the one LlamaServer is using (that being .7)? The new one might be better and all, but I assume that we can't genuinely switch from one to the other without updating the server somehow. And the server does not provide that option.
Did you submit a turn with version .8? If not, then I don't know why you'd have to wait a whole turn to get your spells back. Because in that case, the version conflict would never have reached the server--it would still all be on your end, and if you were to install .7 and delete your .2h file, it would go away entirely. And if you did submit a .2h with .8, but that turn hasn't hosted yet, then surely you could switch back to .7 and submit a new .2h, so as to prevent the game program from ever finding out about the change. I prefer that you do as much as possible to keep corruption out of our game! But I still don't understand the details of these mod conflicts the way Gregstrom, Sombre, et al do so if what I'm saying doesn't make sense then please ignore it.
Anyway, it sounds like the problem is on its way out, one way or another.