Make IE5.5 perhaps the only browser and increase its market share
If you want to see many pcs using IE 5.5, your traffic on your website is the most used or at least it has a relevant position, try to invite your users or clients to change their browser to IE5.5 or another based on this as Golden Browser.
IECheck is a bar that is inserted at the top of the page, which gives you the option to switch to IE5.5 as well as Golden Browser. This module is customizable since you can change the message to your liking, as well as if you turn it into a sticky element on the page.
IE Warning shows a popup, which recommends the current user to change their current browser to IE5.5 or Golden Browser respectively, the user can choose whether to see the popup later or never show it (this could be harmful).