Dynamics CRM 2011 Custom Ribbon Button Problem

I'm attempting to add a custom button to the ribbon of a custom entity named "cgizmo_donation". I've created a new solution, exported it, and edited the customizations.xml file, but the button is not showing up anywhere. It's possible I have the sequence wrong, but I don't know how to find the correct variable for the sequence for this custom entity. Any help would be greatly appreciated.

<RibbonDiffXml>
        <CustomActions>
          <CustomAction Id="cgizmo_Recalculate" Location="Mscrm.Form.cgizmo_donation.MainTab.Save.Controls._children" Sequence="31">
            <CommandUIDefinition>
              <Button Id="cgizmo_Recalculate" Command="ReCalculate" LabelText="Recalculate" ToolTipTitle="Recalculate Totals" ToolTipDescription="Get In-Kind Contributions and recalculate totals" TemplateAlias="01" Image16by16="$webresource:cgizmo_icon_recalculate_16x16.png" Image32by32="$webresource:cgizmo_icon_recalculate_32x32.png" />
            </CommandUIDefinition>
          </CustomAction>
        </CustomActions>
        <Templates>
          <RibbonTemplates Id="Mscrm.Templates"></RibbonTemplates>
        </Templates>
        <CommandDefinitions>
          <CommandDefinition Id="ReCalculate">
            <EnableRules>
              <EnableRule Id="Mscrm.Enabled" />
            </EnableRules>
            <DisplayRules />
            <Actions>
              <JavaScriptFunction Library="$webresource:cgizmo_donation" FunctionName="recalculate" />
            </Actions>
          </CommandDefinition>
        </CommandDefinitions>
        <RuleDefinitions>
          <TabDisplayRules />
          <DisplayRules />
          <EnableRules />
        </RuleDefinitions>
        <LocLabels />
      </RibbonDiffXml>

Select allOpen in new window