You don't want to be using Netzero when downloading 3dmark. I am a former subscriber to their service and they shut down your connection every 4 hours regardless if your port is active or not. Downloading 3dmark (178MB) will for sure be cut off, unless you get Download Accelerator program or something to resume your download.
Although they do have reliable service with unlimited internet surfing, but like with any dial up--slow as heck. That download will take you probably more than a day to download if you are there to connect it 24 hours every time it disconnects.
The only affordable high speed Internet I know is Yahoo SBC DSL, but I don't know if that's possible for your area.