Back to the OP, Either he's connected to a very different exchange than he thinks, or they are using tin cans and wet string for a stretch, I'm a couple of km from exchange by road, attenuation about double that of dragon's
Code:
Modem Status
Connection Status Connected
Ds Rate (Kbps) 8128
Us Rate (Kbps) 448
DS Margin 9
US Margin 25
DS Line Attenuation 20
US Line Attenuation 11
Trained Modulation ADSL_G.dmt