Evening All

I've recently replaced my head gasket (MY98) and ive started putting everything back together. I installed the trans today and all went fairly smoothly (as well as it can!!)... However, out of interest this evening i sat in the car and tried to put car into gear and it is basically all over the shop, doesnt feel centred and feels like no gears. I know i have done up the linkage on the trans but perhaps i havent installed it correctly?? Spring was also put back in place.... Clutch feels normal under foot....

Any info/advice would be great!!