please help

im from croatia and new in wakeboarding. i have a board, it is Obrien custom beginners board, and i also have a Ven 470 fisherman boat. it is about 15'6 and 880lbs. it has also 50 horse power engine, and it has prety good start and top speed about 30mph. i can waterski and monoski without problem. my question is: is this boat fine for wakeboarding, considering i'm on sea, not lake (and sea is heavier then water so it should be even easier). i heard that rope should be attached to boat in diagonal position (which helps you to jump), but on my boat i can't attach rope to some high place! i can only attach rope a little higher than engine is. i hope i was clear. sorry about bad english!
here is pic:

Dude, You can wakeboard behind anything. Just have fun! When i board behind my dads 17 and half foot fish and ski i attach the rope to one side at about water level. I've had alot of fun behind that boat.

yeah man, i board behind a 16.5' boat from the 60s and have a great time. A high tow and a spectra rope help alot tho. This year i rigged up a pole that raises the tow abot 7' and its prety cool. I'll send you some plans to rig a simple pole.