[BizzyB]

This may be a case of the blind leading the blind as I am also learning, However I think the following code:
.TabBar {
COLOR: # any color you want;
.TabFont {
COLOR: # any color you want;
FONT-SIZE: 11px;
}

should be:
.TabBar {
COLOR: # any color you want;}
.TabFont {
COLOR: # any color you want;
FONT-SIZE: 11px;
}

This may, or may not, be significant. Or may, or may not, have an impact on the customer/speed_menu.tpl.

As I understand it, another thing to watch out for when you are cutting and pasting is that you don't end up with superfluous spacing at the end of the tpl code.

Just a couple of thoughts.

I don't have the mod - just an interested onlooker with food for thought!