Trans problem or clutch problem, need help ASAP

Alright guys, on my way home today from work I was all but 1 mile from my house and I was shifting from 4th to 3rd at about 50ish mph and somehow I got 1st, butttt I didnt put it in first gear, I relalized wtf I was doing but before I could pull it back I heard a pop :hammerhd: and the clutch pedal went to the floor and the car was stuck in gear. so I pulled off the road and killed it. I could start the car, and when the trans is in neutral it starts normal but wont go in gear, if I start the car when its already in gear say like 1st it will hop and kick over till it starts then it will go, but you are stuck in gear with the clutch pedal to the floor. I didnt have time to look at it cause its pitch black out and Im hopoing its the cable or something stupid casue the car only has 49k miles and wasnt abused. Anyways, what are your ideas for me to check into? Thanks alot!

Cable is ok, took the dust cover off and I can move the clutch fork with my hands front and back with no problem at all, I can also see fiberglass looking sutff around the outside of the presure plate, sounds like the clutch blew apart...guess Ill order a king cobra clutch and install it myself