Putting Text on an overlay

[ezarra]

in my XML I have

<StatusBar name="EZXPBarXP" inherits="TextStatusBar" frameStrata="LOW">
    <Size>
        <AbsDimension x="118" y="5"/>
    </Size>
    <Anchors>
        <Anchor point="TOPLEFT" relativeTo="EZXPBar" relativePoint="TOPLEFT">
            <Offset>
                <AbsDimension x="5" y="-5"/>
            </Offset>
        </Anchor>
    </Anchors>
    <Scripts>
        <OnEvent>
            EZXPBar_OnEvent(event);
        </OnEvent>
    </Scripts>
    <BarTexture file="Interface\TargetingFrame\UI-StatusBar"/>
    <BarColor r="0.5" g="0" b="0.5"/>
    <Layers>
        <Layer level="OVERLAY">
            <FontString name="EZXPBar_TEXT" inherits="GameFontNormalSmall">
                <Shadow/>
                <Color r="1" g="1" b="0"/>
            </FontString>
        </Layer>					
    </Layers>
</StatusBar>

Now, I am trying to set the text and color in my lua:

if (GetXPExhaustion() ~= nil) then
    EZXPBarXP:SetStatusBarColor(0.8,0.6,0);
    EZXPBar_TEXT:SetText(COLOR1 ..dispRP );
else
   EZXPBar_TEXT:SetText(COLOR1 .. dispXP);
   EZXPBarXP:SetStatusBarColor(0,0,1);
end

Trouble is, neither the color not the text setting appear to do anything at all