Override VisitedLink color in Datagrid Header VB VS2003

[smcirish]

http://www.velocityreviews.com/forums/t86918-datagrid-cssclass-being-overridden-by-td-style.html

I found the post above on overriding a default style in a datagrid. But I couldn't quite get it to work for VisitedLinks. I'm trying to change the visited link color, only in the Datagrid Header.

Please advise,
smcirish