How your website displays on different browsers has to do with how you code your website. If you want to go that far back, you can probably only use the HMTL1.0 and HTML1.1 stardard. It will be pretty hard, so good luck!
Our servers are configured to support modern browsers and devices, and the up to date performance and security features they provide. We want to provide a fast and safe hosting service, after all.
Internet Explorer 6 and before are extremely old, and are full of security bugs and outdated protocols that are not considered safe anymore. Nobody should be using those browsers anymore.
Building sites for older websites is definitely a cool project, but not something we can support without putting newer sites in danger. So we can’t support it.