Some things you might want to try with your wheel before attaching fiber.
1) Sit and work the treadle. Try to get it going and stopped without using your hands (yes, it's okay to use your hands to get it going!!). Treadle slow, just enough to keep the wheel going. Treadle fast (this to get you into practice for spinning contests!!)
2) Tie on some store bought yarn (see Red Heart is good for some thing!!) and treadle, filling the bobbin, changing your hooks. This allows you time to get used to the fiber going through your hands and onto the bobbin and teaches you how to adjust your wheel for quicker or slower take up.
3) predraft your fiber to the thickness you want to spin. Hold fiber lightly to introduce the spin and spin onto the bobbin.
that ebay fiber .... some of it looks like compacted roving or slyvers. Just give it a quick snap (holding hands about 12" apart all the length of the roving) to bring it back to life.
Dog slickers can be used in a pinch to recard it if you have nothing else available. I think the snap & predrafting should work though.
If you have some slyver or roving that doesn't want to draft from one end, start at the other end. It should draft better.
Most of all, have fun!!!