Adjust Opencart template to work in IE

Avg Bid (USD)
Project Budget (USD)
$30 - $100

Project Description:
Broken layout with IE - i got a webshop wich works 100% in all other browser except Internet Explorer...I currently got a plugin wich tells the customer that IE aint supported.
I would like to get some help fixing the errors IE comes with (php errors etc) so that my site will work on ALL browsers 100%.

Maybe the valid ccs from works - but i cant figure it out.

Skills required:
Website Design
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.

$ 93
in 3 days
$ 103
in 3 days
$ 99
in 3 days
$ 88
in 3 days
$ 85
in 5 days
$ 105
in 2 days
$ 88
in 1 days