Many companies use transparent proxy servers to access web from inside their firewalls. That is for security reasons.
I've been told that the reason I cannot login to the techarts website is because the login does not work with my companies firewall/proxy setup. Yep, again, "security" stops me from doing simple tasks. I cannot browse the products correctly. My problem seems the same as this subject thread: "New site gives no indication of successful login"
The thing is, there was no suggesting of how to fix it. Common, techarts, this is serious! Isn't there some simple port to allow or something in order to make it work? I don't want to call and order, which is all you suggested. I want to browse products online. Without loging in, it won't even show me the prices in USD!