I can't open them using Illustrator CS. It says, not enough memory to open the file and also cannot open illustration.

So the only solution here is to install Illustrator 10?

how come cannot?

u will be prompted "update the file, or data may loss"

but is good to reopen it in illust 10 format, safer

That's the probbie. Tomorrow will try the college imac. (CS too)

Can already, Illustrator cacated earlier.