Here is the code that you will need:
<b:if cond='data:blog.url == "http://xyz.blogspot.com/2008/11/about.html"'>
<meta content='0;url=http://www.xyz.com/about/' http-equiv='refresh'/>
Some points to note:
- You need to place this code just before the head section closure ie before </head> tag.
- Take note of spacing before and after equals to sign and also there should be two (==) and not one (=) equals to sign.
- content = 0 means. The browser will wait for 0 seconds before redirecting to another page.