I still am having that problem that I was previously with the download test measuring my school's bandwidth as much lower than what I get in real world downlods, but finally the upload test is about accurate.  I used to get 50 kB/s up, when I would test at ~250 kB/s on FTP transfers.  Today, I am getting more accurate upload stats.  I still don't know why I can't use the full pipe to download from testmy or my site in the same datacenter from this location (unless I use ftp to my site, in which case, I get 1.5 MB/s down).

::::::::::.. Upload Stats ..::::::::::
Connection is: 3107 Kbps about 3.1 Mbps (tested with 1013 KB)
Upload Speed is: 379 kB/s
Tested From:: http://www.testmy.net/
Bottom Line: 55 times faster than 56K you can upload 1MB in 2.7 second(s)
Validation Link :: http://testmy.net/cgi-bin/get.cgi?Test_ID=TGH8G9UUB

::::::::::.. Download Stats ..::::::::::
Connection is:: 3788 Kbps about 3.8 Mbps (tested with 2992 KB)
Download Speed is:: 462 kB/s
Tested From:: http://www.testmy.net/
Bottom Line:: 68 times faster than 56K you can download 1MB in 2.22 second(s)
Validation Link:: http://testmy.net/cgi-bin/get.cgi?Test_ID=QJ3MN6O41

Edit:
When I do the smallest upload test, I get bumped up to the 1496 KB one.  There I score this:

::::::::::.. Upload Stats ..::::::::::
Connection is: 3268 Kbps about 3.3 Mbps (tested with 1496 KB)
Upload Speed is: 399 kB/s
Tested From:: http://www.testmy.net/
Bottom Line: 58 times faster than 56K you can upload 1MB in 2.57 second(s)
Validation Link :: http://testmy.net/cgi-bin/get.cgi?Test_ID=KAMN48CA1

lol, it is on my server, isn't it...  I'll try those tweaks tonight.  It's easier to tell if tweaks actually help vs. less load on the network when the kids are gone.