The only thing that jumps out at me is that your page has no opening html tag. That really doesn't matter for the effect, not by itself. It is a required tag though and with the scripts that Geocities inserts before your content, could be confusing the browser. So, try this and let me know:
Originally Posted by angel_kisses_xoxo
Please be aware that this effect cannot work when you first surf to the site but, it should work when exiting the first page to the second. To be a site wide effect, it should be on each page.
<meta http-equiv="Page-Exit" content="blendtrans(duration=2.0)">