As for using 5.91, that is over a decade old. There are MANY changes and fixes including security fixes since then. Using a version that old is just asking for trouble. If they won't upgrade, you shouldn't feel like you have to do anything special just so they can see what you type. It's there fault if they refuse to update.
Very off-topic and not very helpful.. Why do most sites still support IE6.0? because at least
someone uses it
