You have to make change to a BTS template on an Oscommerce shop.
Your work will be only do to the template and not on Oscommerce script.
1) Fix template bug
When you come a first time on shop ([login to view URL]) and clic on contact-us or other link, you'll get an error 404 (maybe a problem with SEO and template's links).
2) Fix template size bug
When you choose categories, size change. You have to fix it.
3) Change link color
You can see some orange link. I think it isn't very nice. You have to find a good color and change it.
4) Code optimize
As possible, make html and css better with w3c.
Try to make the lightest template (in ko).
Feel free to propose other things if you think you can make template better.