using a vector to specify llSetRot?

is there a script that will convert a vector (non unit prefferably), into a quaternion for the llSetRot command?

I'm not exactly sure what you mean.

If you mean you want a rotation around your vector by some angle, then you want to look at llAxisAngle2Rot.

If you want to get a rotation that points the front of something at your vector, and you don't care about the "roll" angle, then you want to do something like llRotBetween(<0,0,1>, yourvec).

I think you probably mean turning a euler representation into a quaternion.

llEuler2Rot()

If it's the euler thing, don't forget to convert the angle into radians first.

The wiki page on Rotations shows you the exact code to do what you ask.

Senuka, if the vector represents rotation around the x, y and z axes, then use llEuler2Rot as mentioned by Jill - but I get the feeling (from your mention of non-unit vectors) that it is an offset from one object to another.

If so, divide it by the rotation of the object to turn, or if it is an offset from an object to you, divide it by your av's rot. That should do the trick.