quick fix Oscommerce site shipping costs

Avg Bid (EUR)
Project Budget (EUR)
€30 - €250

Project Description:
There are 2 small issues on my Osc site (version 2.2RC). Its about the weight-based shipping cost, based on 3 categories (13 kg).

1) if weight 10-13 kg: theres inconsistency in price between product detail page and checkout page.

2) if weight >13 kg:
Theres VAT difference in shipping price between detail page and checkout page.

3) If weight <10 KGS theres no problem.

A quick fix is required, hopefully today.
If you do this cheap, quick and fast I may have more jobs for you.

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.

€ 105
in 2 days
€ 87
in 3 days
€ 105
in 1 days
Hire tomaszbg
€ 60
in 2 days
€ 105
in 3 days
Hire sidfishman
€ 210
in 2 days
€ 241
in 2 days
€ 39
in 1 days
€ 94
in 1 days
€ 50
in 2 days