I've included a"giftwish" registry onto my site, which also allows people to add a "giftwish" link on their links bar and includes a date script that shows graphics on holiday days. So far, it seems to work and render fine in firefox and IE 6.
I would like to know how it looks for others. My site is being upgraded (still adding more pics), but you can test it out by going to www.dancingsunpottery.com, click on any product and you'll see a "add to my wish list " button to click. It opens a new window to the gift registry.

If this is something anyone would be interested in please let me know and I'll post the script here.