I did mine without the instructions, and it seemed pretty straight forward. The whole track assembly comes off in one piece. After that, the only thing you have to watch is mounting the seatbelt latch. With the track off, next to the seat, use it as a reference for how the holes line up for the floor mount.
Also when mine was installed the holes didn't line up perfectly with the holes in the floor(probably because the seat itself doesn't stay square). All I did was install three of the bolts and force the other in place with a big screwdriver. It didn't take as much force as you'd think.
Hope this helps.