I'm taking my car to my uncle's workshop on a truck. I'm not risking it. I don't want to damage the gearbox anymore.
Hopefully its just the seal and the internals like olop_chris said. I'm just hoping the casing isn't broken.
I was investigating putting a lupo gti box into the polo. After speaking to my bro, he says its not worth it and there is too much time involved. However it can be done.
D-Dub: - I don't understand how VW are not aware of this problem. WTF! I knoe enough VW dealers who are aware of the problem. Why not have a recall and get them to fit the Lupo gti box in for us? VW are so tight.
Anyways after experiencing the gearbox going i've been getting the p*** taken out of me by my dad.

Doesn't really help when i've spent a fortune on it. I'm actually considering selling it after and buying something else. But i'm sure i'll be loving it once its all repaired and running smooth again.
By the way i'm running a short-shifter. I've been told its not worth having it on the car as it causes more stress to the gearbox. So all those who were considering this, just be warned!