I can't currently find my Vanilla disc, so I can't see what's going on there. (not that I'm necessarily qualified to help anyhow...)
Generic solution: Lots of defense and arty. Strangely, offensive units aren't as valuable as one might expect. The two important things? Holding your cities, and a very favorable kill ratio. As I said, generic, and I'm sure you knew them anyhow.
Not so generic help: put a pike or something under that army for the pillaging.
"pretty well"? You have survived to the Medieval age, I'd say that's darn good. Considering everything costs twice as much (?) for you, you seem to be holding your own.
Re: SG's
Vanilla games are rare, but I bet if you started one, you could get people to join....
C3C is a great buy, but I won't pretend to know if you are in a situation to buy it
Scout already asked? Great minds think alike, eh?
