When they changed the preferences page I couldn't find out how to do that anymore.

If you have the new navigation tabs enabled, it's under the Personal tab. Otherwise: direct link here. :)

were do you find your home page which tells you how long your gold account as left

Good question, it took a minute to figure it out. If you have the new nav system selected, you can click on Personal->Site Preferences. If not, here is the direct link.

thankyou so much Ill go look :)