Ranger 2000 floppin stickshift

Greetings,
Sorry to sound like a spaz, . However.

I have a 2000 Ranger ( manual trans ). I had to have the clutch hydrolics worked on this
summer. Ok up to date.

I drove the thing for really the first time since the work was done, other than acouple quick trips to town. Made it to the next state, parked it.
Hopped in it to take off, tried to put it in reverse & the stick flopped in the breeze.

The gears are there & the clutch, if I am careful & lucky, I can find them all while it sits, but wasn't about to try to drive it home.

I talked to one of the guys in the shop where it was worked on & he thought that possibly it may be a pin or clamp set up not put back together correctly when they worked on it.

What I'd like to know is, how would I go about looking to see if maybe one of those things could be the problem or if there might be something else.

Although I have done some work on my older rigs, I havent touched this thing. Not a complete dork, but close enough I could really use some info.

If it's something I can get away w/ doing myself or if it's something the garage should be backing up great, however Im not about to take it back to them if its something new & different .

Thanks