Soumds you and I have had similar problems... I've worked on mods for two previous older builds and you can't just plop old data over to new... It generates errors that might not have been errors at the time.
Worst case scenario: keep your old data, but not import it.
You'll have to redo all the data that's actually critical to the ships over NEW SCP entries (just like I had to do). There was no way I was going to track down 192+ errors when I had no idea wtf it was even talking about in the first place and had nothing to do with me personally.
Luckily FS2 IS rather easy to Mod even with limited knowledge. As for me I only mod enough stuff in for TESTING purposes and never any real commitment. That means I restrict myself to WEAPONS and SHIP's tables only and occasionally make a effect.
Using tables (I know work error free) as a Template for those things and then afterward going back and customizing them, and then yet MORE TESTING!
Testing is a very boring and vital thing in FS2 modding and cannot be rushed or skipped.
People often run into trouble when they start changing multiple things and then have no idea where to start when **** goes south... I learned that lesson myself painfully.
Good luck with your effort and trudge on soldier!
