Well i bought the right helical jo-jan Mono fletcher and i cant figure out how to change the offset or change the angel of the helical. I did one arrow that i noticed that one of the vanes had the helical that i wanted but the others werent.
I just bought one and i am not very ecperienced with fletching my own.
any help would be greatly apprecicated.

Try this out...might be easier than explaining it.

http://www.jojan.net/support.php

set the front bar so the front end of the fletch is in the middle of the arrow shaft
slide the bottom bar to the right to the mark R
this will be a starting point
Put a fletch in the helical clamp(no glue yet!)and set it on the arrow and check how it lines up with the shaft
make adjustments to the top and /or bottom bars until it lines up right and you have good fletch contact the whole length of the fletching to the shaft.
Tighten up the wing nuts and fletch away!