you shouldn't need instructions to set up a trainer. It's pretty simple, they're all basically the same.

1. get the drum out of the way (by moving that lever probably)
2. put in cheap/strong old-school style cam skewer on rear wheel
3. adjust side holders to get the right drop-out width, so that when you tighten that lever to squeeze on the dropouts it's tight, but not ridiculously tight.
4. move the drum up so it's touching the tire and slightly deforming it.
5. ride.
6. ????
7. profit!!!