i've uploaded a new version of this module to the contrib.

i had quite a few hassles with mysql, so i'm sorry to say that the new version will not automatically update the first one. the old one will have to be uninstalled and the new one installed from scratch. or you can update the mysql manually if you're handy like that.

it now has the following features:
- weightless packages ship for free;
- items over a specified amount are shipped for free;
- one rule with no min and no max can be defined, or;
- different rules with different ranges (see contrib for more info).

some if this module's many flaws are:
- no checks for conflicting/overlapping rules;
- no possibility for defining price per unit of weight (e.g.: 200g x 0.10p/g = $20);
- zones smaller do not override larger ones.

for someone like my client (cottage industry), this module works fine, but i really wonder how useful it would be for larger applications. it's so much work to define these rules by hand, it seems that there must be a much more graceful solution.

anyway, i do think it's worth tweaking it a bit more to address some of the flaws i've listed above, just to make it a bit more useful. as of this week, i can't devote too much of my time to this module because i'm on a different contract, but i'll keep checking in to see if anyone needs any help with it and i'll try to work on it a bit on the weekends.