Welcome back rhazberry!
Im pretty sure I remember your name from somewhere (which is a good thing) but i think you either come from the era of the drug selling point either being under the tree or inside the drughouse with the garage. Well, basically the concept of the server is still the same, farm drugs for money, and you rankup with that money. There have been suttle changes, and more balances to keep the server fair (and of course fixing all exploits). The more major changes from then to now is pretty much the player base, the lower staff team, and the factions. You shouldn't have any trouble fitting back into the community, and getting back on track.
Hope this helps,
-theodor488