Firstly you must have:

GPRS enabled phone with an MTN sim  (3G) preferrable coz its very fast,a USB cord, a  PC( laptop or desktop) and that is all you need.

Let me begin with this called hotspot shield.
Copy and past this link on your web browser to download it. http://hotspotshield.com/download/hss-win/HSS-1.34-install-anchorfree-76-conduit.zip After downloading the software, extract the file using winrar or winzip and install it. After that you can now connect you phone and launch the application. Surprisingly, it will start loading I n your internet explorer; don’t just worry have patience. Within the next few seconds, you should be able to establish a working network connection. Your hotspot will write connected then you can now use your internet explorer to browse free of charge.

Sencondly Free gate.
Search this for this software in the popular sortware search engines http://brothersoft.com/ or http://sharemobile.ro/After downlopading it,then launch it.iIt will start opening internet explorer.But most people like mozillafirefox, so configure your mozilla with the following settings: proxy:127.0.0.1
port:8580

Thirdly  ultrasurf
This one is the same thing like free gate.just dowmload it from http://sharemobile.com/ or http://brothersoft.com/.
After downloading it, just launch it.no any other seetings is required, then connect your phone using MTN normal settings(default settings).
And that is all. You can now browse free of charge.
There other PC free browsing software like:
metropipe (using B093-C3A0-5D1B-97F3 as download code)
t-boster (using java runtime enviroment)
pingfu irsh
freedom client.