I strongly recommend you to play a bit of pve first to get better known with the professions and skills in gw. When you are familar with most skills etc in pve you can start working on pvp. Some skills are different and many professions certainly have different positions in pvp, but seing how complicated guild wars (build wars?) pvp can be, I think it will be easier for you guys to start out in pve.
If you however want to go right on the pvp part there are some guides etc that will make things easier for you.
I guess I could list a few things to remember in pvp:
By the way you express how you want to play your ranger I think you might be looking at the wrong profession. With only a few exeptions (ranger spike and some pressure builds in HA) rangers are mainly used for splitting (in gvg) and interrupting shit. This takes alot of practice, but a good ranger can really give the enemy casters and healers a tough day at work.
I'll list up the professions and what they usually are used for in pvp (mostly gvg and HA):
Warrior - Kill stuff!!! Leave your self heal in pve, healing is your monks job. You should be focusing on cutting stuff down.
Assassin/dervish - Not used as much as warrior in pvp, but can certainly be useful in some teams, and will work just fine in ra/ta.
Necro - Not used a lot in gvg (exept for hex heavy meta's) but are often used in different team builds for HA, TA etc. Your job as a necro is usually to spread pressure by applying hexes to the right targets.
Mesmer - This class really shines in pvp (compared to pve). Mesmers are used frequently in all pvp arenas. Your job is to place the enemy casters in a living hell, by interrupting, energy draining and hexing.
Ranger - Also used alot in pvp. You are the team's toolbox. Your job is to split and gank npc's (gvg), apply pressure by spreading poison on the enemy team, interrupting enemy casters (dshot for 20sec recharge on their important spells, savage/magebane for the rest?), snaring enemies (snare their frontliners for defence, snare their backliners for offence).
Paragon - Sort of a bitch role. Definately useful, but usually not the main part of the team in any way. You role in pvp is to sing, shout whatnot to boost your teams defence, offence etc (note that you are suppost to be doing this ingame through your skills, not on vent ;p)
Ritualist - Used a bit in HA for support, but they are mostly used as flag runners in gvg. In the current meta ele runners are used, but im sure the rits will come back next meta, or meta after that.
Monks - Quite obvious. Heal heal heal. Might seem easy at first sight, but to become a good monk you need to be able to weapon switch between casts, pre-prot, deal with energy draining, watch the battlefield instead of the red health bars and much much more.
Please note that im not the most experienced guy in pvp, so I might be wrong about some things, but I think most of what I just wrote is right.
Here are some great guides for pvp:
http://www.rebelrising.net/library/a...php?media=text
Ands some vent recordings (number 9 to 15 at least):
http://www.rebelrising.net/library/a...hp?media=audio
And my number one tip: Find a rookie guild, or at least a guild that accepts newcommers. It will make it all easier seing as getting into a random group with no pvp ranks can be quite hard and will usually force you to run lame gimmick builds instead of brave balanced ones
Good luck with pvp, don't give up even though it can be hard to get into !
Anders.
edit: oh, and don't be afraid to hit me up ingame if you have any questions : )
In game names: Athena Neiro / Ohai Im Anders