Hi Mark, my 84 Scirocco has issues with 1st gear when it's cold but it usually goes away when it's warmed up a bit. I know before I replaced all of my shifter bushings, it was a real chore to find ANY gear, much less first. A couple things to check:
Checking the fluid level is quick and easy- on the drivers side of the tranny, there is a green "end cap"- you can see it pretty easily just by sticking your head behind the front tire. To the right of that is a I believe a 17mm hex plug- that's your fill nut. There is an identical plug on the bottom of the tranny near the differential area for draining. If you open the fill hole, the fluid level should be right there. Actually the proper amount of fluid is just a tad more than the top of that hole on level ground. Have you had any problems with 5th gear popping out? That's a sure sign that it is low on fluid. (and that you may need a new 5th gear!)
There is no hydraulic assist for the clutch, it's a cable operated clutch. It also may be a manually adjustable cable (which do feel better and last longer than the auto adjusting ones) but they do sometimes need a little adjustment. You'll see the cable going through a bracket on the front (front of the car) side of the transmission, there should be a plastic collar around the cable at this bracket. At the top of the collar there is a nut that you loosen first, then turn the collar clockwise to adjust the cable up more, counterclockwise for down. If there is more than about an inch of upward play in the "arm" that the cable attaches to, it needs to be adjusted up a little.
Is there any slop in the shifter? My guess is that if so, this is probably your main problem. There are lots of bushings around all of the various bits of the shifter linkage- the Bentley manual has some nice diagrams on how it all goes together. You can purchase bushing kits for something like $12-20 that will replace all of them.
If the bushings dont fix it, the Bentley will show a few ways to adjust the main shifter rod that runs underneath the car, that can fix 1st and reverse problems. There is also a way to adjust the shift rod inside the transmission but it rarely needs adjustment and should only be a last resort attempt.
Good luck!
If it makes you feel any better, my 20 year old Scirocco after replacing all the bushings and adding a Techtonics short shift kit, shifts better than my 2000 Camaro does with a B&M and 1/4 as many miles.

Brendan
84 Scirocco 8v
00 Camaro L36 M49