g1smd - 11:50 pm on Nov 3, 2002 (gmt 0)

I guess you want to use the H tag for the extra benefit that words within Headings get in SE rankings?

However, H tags are for Headings. They are used to map out the structure of your web page.

Check this link replacing your web address into the foo.com part:
[validator.w3.org...]

Note that %3A is the colon : and that %2F is the slash / and these are required.