help help please help

Sorry would of replied faster but was having trouble with somthing, thats for link.

I'll have to try and find a way to call them, I think for now my most important thing to do is find out about tax then I am in the clear with legal things, and i will have to just say a load of bollocks to the customer.
I don't have a clue how im supposed to get some money, and cant even remember what invoicing means.