As the others have said, your cable should be fine.
FTP = Foil Twisted Pairs.
STP = Shielded Twisted Pairs.
UTP = Unshielded Twisted Pairs.
UTP is the most common and least expensive.
If it's a patch cable (what you want to use to connect your PC to a router), both ends will look like this:
If it's a crossover cable, one end will look like above and the other like this:
This is used when connecting one PC directly to another.
Why don't you have your friend try plugging the new cable into his computer and see if it works. Whether it does or not, we will have more information to help you out. You can also do the reverse and plug his cable (working) into your computer to see if it works. That will tell us whether it's the cable or your computer.
Just my 2c worth...hope it helps,
RichEdited by Lost Hawaiian - 7/30/11 at 11:05am