Firstly Arrows:
Free arrows @ lvl 55 get yourself a
Rune Bow or
Rune XBow (both from Hall of the Demon Lord - Boss 3 and 4 if I remember correctly), only need to equip the bow and open character interface > right click the bow and you get free arrows for life
Free arrows @ lvl 60 is available from the
Fang Set dropped in Raksha Temple, this is an
Item Set Skill which you click to create the arrows.
Skills for TP investment: @ lvl 30 you get a free
TP reset stone from your Newbie Gift Bag so don't worry too much about investing TP in the wrong skills, you can always reset the skills when you're higher lvl and know which ones works best for you.
Under lvl 50: Bow and Speed Shooting Mastery, Shot, Vampire Arrows (S/P has an elite skill which gives you a
buff when you cast Vamp that gives you a regen heal .. very handy for lower lvls - I think the healing value is based on the lvl of vamp), Combo Shot, Snipe (again S/P are so lucky! you have an
elite skill which reduces casting time of Snipe to 1 second, snipe does a lot of damage.. given it's a long cooldown but a good DPS skill to start a rotation with) Wind Arrows (although the DPS output of this skill is somewhat nerfed it doesn't have a cooldown phase and is an ideal filler to use). Piercing Arrow and Reflective Shot are recommended last as they're both AoEs so need to be careful when questing not to accidentally aggro too many mobs.
Rotation (this mainly applies to boss fights): Snipe > shot > Combo Shot > Autoshot > Vamp Arrow > Piercing Arrow > Shot > Reflected Shot > Shot > Wind Arrow (maybe) > repeat
(^ based on dps values on my S/R, baring in mind I use
DIYCE so the script automatically skips the skills that are on cooldown and moves to the next .. Autoshot is cast early in the rotation to act as an auto filler in between cooldowns)
Gear Wise: Learn to dirty stat (there should be loads of guides on forums on how to dirty stat and upgrade, if you can't find any send me a pm and I'll send the info from an old guide I wrote for my last guild...I did put it up in rom forums but it's poofed since they changed the forum layout lol)