Vauxhall Zafira A - clutch/gearbox problem - Daza1980

Hi can anyone help I have a 2003 2.0 dti vauxhall zafira. I had the clutch kit replaced April 2014. And now when I start it up and put it in gear when I pull off the engine just revs and gose nowhere and it makes some loud rattling noise but if I release my clutch very slowly it will pull off but If I rev it to go past 5mph the engine just revs and I go nowhere. So many ppl are telling me different things that it could be but I just don't no what to do

Vauxhall Zafira A - clutch/gearbox problem - dadbif
The clutch cover plate has broken
Vauxhall Zafira A - clutch/gearbox problem - Daza1980
How easy is this to do
Vauxhall Zafira A - clutch/gearbox problem - Bolt

gearbox needs to be removed to see whats going on, it could be anything from failed gearbox to broken diff (part of gearbox)