i can't stand ragnarok so unbalanced so questless yet so freaking good that it made me play for an entire year (that's omg++ in terms of a game)
official english ro:
http://iro.ragnarokonline.com/(costs $$)
the best ro help site: (well assuming you don't need stupid guides, it just got all the info you need, i used it alot)
http://www.rodatabase.org/ play for $$? no sir!, a list of private servers:
http://www.gamesites200.com/ragnarok/careful, alot of them are crap with too high exp, look for 1/1/1 or worse case 3/3/3, anything more will suck ^^
vail.. no -.-
now, abs is sort of hard to make it takes alot of energy, it's easy as you can make delays and so on and only melee battle or something but seriously it takes tons of energy.
however there are now scripts for it too, search
www.rmxp.net (the laggiest site eva), i think the one near_fantastica(something like that) made is quite good , that is if you can actually understand it.