Cheeerss guys will have a look later ;)

If you look below the battery tray, on the gearbox there will be like a piece of metal about 10cm long and 1cm thick thats attached to the gearbox at one end and the other end has 2 "fingers" that the cable is attached to. You will see the cable going backwards towards the bulkhead. Just unclip it from the fingers by pulling the cable towards the front of the car and then moving it to the right. There will be a little block on the cable that was holding it into the "fingers", take that block and turn it whilst holding the cable so the block moves down the cable towards the bulkhead. Then clip it back in and it should be better.

Not sure how to upload photos from my mobile in html format but I can link you to a previous image posted on corsasport
http://www.corsasport.co.uk/carimages/7751/clutchoff1.jpg
There's a small plastic block on the cable resting against a pivoting arm. If you screw this up towards the cable about 2 or 3 threads, then try selecting gear. If not, try a bit further

I dunno if corsa b's are adjustable are they?? I do vehicle body repair and am a complete retard when it comes to mechanics btw! Pictures are helpful :D

Clutch cable has probably stretched and it'll still be dragging the clutch when you've got the pedal fully pressed. Try adjusting it at the fork on top of the box, don't go too far, just a few threads, see if it makes a difference

Yer finee!

Try adjusting your clutch cable. Will it slide into gear when the engine is off?

Basically im having to ram my gears in and every single time i put it into reverse it makes a loud crunch even when im not moving!
Is it gear selector going, clutch, gearbox,?? HELP!!!