Your upload speed will be in the region of 240 Kbs. This is normal for all 512 connections. IE: you can download data at 512 Kbs - upload data at 240 Kbs.
BT always say that initial test show you are capable of receiving Broadband but will depend on the final line test. You now need to place an order and your actual line to your house will be tested, if it passes or if a little attention to it will allow it to work then the contract will go through. If any faults that can't be fixed are found then all your money will be returned.
Don't worry to much though, very few if any fail the final test once BT has given the all clear. j.