Oscommerce store - adding USPS and Canada Post shipping module

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I have an osc store with the shipping module set up to give a flat rate (based on weight) now for all 3 (US domestic Priority, overseas through USPS and Canada Post Express). I need to set up a flat rate for domestic US orders and USPS express and priority (for customer to choose) and Canada Post Express for Canadian orders. (I'm in Canada on the border with the US and shipping from the USA and Canada :)

So again: I need to offer a flat rate for US domestic, Priority and Express for USPS overseas and Express for Canada Post.

If it's a big problem - I could possibly settle for USPS Priority for US domestic shipping, but would definitely prefer as above.

Additional Project Description:
03/11/2013 at 10:18 NZDT
Just found out that Canada Post doesn't have an upgraded API and they are switching to a different interface, so that part of the project is out, so please bid accordingly.

Skills required:
OSCommerce, PHP
About the employer:
Public Clarification Board
Bids are hidden by the project creator. Log in as the employer to view bids or to bid on this project.
You will not be able to bid on this project if you are not qualified in one of the job categories. To see your qualifications click here.

$ 201
in 4 days
Hire kagg
$ 150
in 2 days
$ 185
in 3 days
$ 90
in 2 days
$ 30
in 4 days
$ 250
in 3 days
Hire maxtechsl
$ 100
in 2 days
$ 100
in 2 days
$ 225
in 15 days
$ 210
in 4 days