Add this to the top of your headers if you don't have it:
<script src="/jquery.js"></script>
Footers:
<script>
function change_tab_text() {
//Created by Agent Moose (smcodes.smfforfree3.com)
$(function() {
var tab = new Array()
tab[tab.length] = ["TAB TEXT","YOUR TEXT HERE"]
for(f=0;f<tab.length;f++){
$(".maintab_back a , .maintab_active_back a").each(function() {
if(this.innerHTML.match(tab[f][0])){this.innerHTML = this.innerHTML.replace(tab[f][0],tab[f][1]);};
});};});}
change_tab_text();
</script>
This changes the Tab Text to your own text. Now, this code will change the tab text when your on that page, or not.
TAB TEXT = The text that you want to change
YOUR TEXT HERE = The text the tab will change too.
EDIT:
If you want to change more tab texts, add more of these lines:
tab[tab.length] = ["TAB TEXT","YOUR TEXT HERE"]