Here's some information to help you understand your results.
There are a lot of things that factor into your speed test results. Download and upload speeds, backbones, networks, latency, ping times, and DNS servers.
Download
Download is a measure of how fast your connection delivers content to your computer or local area network.
Upload
Upload is the measure of how fast content is delivered from your computer or local area network to others on the Internet.
To achieve optimal delivery of T1 or SDSL services, download and upload speed should match or at least be very close. This is very important for applications like VoIP, email, on-line gaming and other interactive programs. Upload speed is even more important if you are operating an email, web or file server at your location.
Kbps
Kbps transfer rate = kilobit per second transfer rate. There are 8 bits in a byte, so we would divide kbps by 8 to get KB/sec transfer rate.