unzip into modules/ubercart/shipping/
configuration is under home>administer>store administration>configuration>methods
well this was largely based on the geoshipping module and the the weight quotes module so:
you configure shipping rules where you choose the area type: country, zone, postal code, region or anywhere (special default - only applies if no other specific rules apply)
for each rule you may choose a flat rate or a per weight unit multiplication.
you choose a min and max weight range for the rule, and a max amount weight, which means order over that amount are free (shipping).
most of this was already in the geoshipping...what's new you ask?
weight units are fully supported, in each rule you choose the weight unit and the module converts rule units and product units to fit.
works with the shipping quotes module: you can see the shipping costs before the review pane.
supports regions, which will make the configuration easier.
That's it for now...
I tested it a bit, so please help me out and test....and use at own risk =)
also let me know when I should post this in the contributed modules section...