clutch and gearbox troubles

[evie89]

Iv changed the clutch im my subaru impretza the clutch is working fine but now iv done this it wont go into gear when the engine is on. It will go into gear when engine is off but not when engine is on and when I do get it into gear it crunches into gear any ideas

[Buggyeye]

Dodgy release bearing? Pressure plate?

I love my car...my bank account does not