The site you can find GTA IV is well, GTA IV.com
This site seems to have a tutorial. See if this will help:www.gtagaming.com/downloads/installation-help
in gta 4 type in on nicos phone 4865550100
No,but you find out she's part of the LCPD. Golden Eagle 007$$$
there's loads of "drug people" in G.T.A IV. find them in the city
NO
You cant, unless your in GTA: Episodes multiplayer or in GTA: Episodes have a trainer to spawn one
Yes But No Parachute.
NO! never!
Yes
Annihilator
Under the bridge
You can fly helicopters.