Help!: BT wifi network with laptop to iPad using iPad SIM

Hi all,

Problem: I need to use my laptop so that I can send files over the internet.
I do not have Broadband or a SIM-dongle combi/gadget/thingy for this device.

However, i do have my iPad with me with access to the internet via a self-made micro-SIM running on Brazil's TiM network very successfully!

What I need to happen is this (if at all possible):
I want to use the iPad as perhaps a Bridge/Router because an internet connection is established and works perfectly.
I then want to access this internet connection using my laptop so that I can send urgent files to clients in London.

At the moment I am still in Brazil. I am due to return to London in about 11 days, but I have customers that require important files critically.
"..soon is just not good enough..."

If there is anyone out there who can shed some light, I would be very grateful.
BTW: i have created a BlueTooth Wireless network between these 2 devices.