I know about both of those problems and i'll explain them sorta.
Jumping through hills:
it has to do with the command:
code:
Get Ground Height(1,x#,z#)
I just havent time to try to debug it, espessially because its just a first game i don't really care about it, i'll try to fix those kinds of problems next time though.
Ghosting(Floating when you Use the Sword and Move) :
it has to do with the fact that the object file (.x) doesnt animate his legs when he uses the sword, we didnt make the .x files because we didnt have a program the would do that, which while im on the topic if you know any great free programs that make .x files or .3ds files let me know.