Problem with Entering Code Sample

I cannot get my code to paste in as a code sample (I have another question to ask!). I have copied and pasted the advanced xml into both notepad and word, but am still unable to get it showing as xml in the preview pane below. I have tried pasting it in, then highlighting it and then clicking code block. I have tried hand-typing in the

 tags and still, the code does not show as xml.
I have tried both IE 7 and Firefox 14.0.1. I have flash installed. Is there something else I am missing to get the code block working correctly?
Thanks,
Sarah
Example of how code gets pasted:
<module name="HiddenSearch">
                <param name="search">
                index=errvol_summary_fivemin report="1min_Counts" NOT CATEGORY="----" orig_host=$HOST$ JVM=$JVM$  APP=$APP$ LOG_PLATFORM=$LOG_PLATFORM$ DATACENTER=$DATACENTER$ CATEGORY=$CATEGORY$
                PIPELINE=$PIPELINE$ | stats sum(count) AS count by APP DATACENTER JVM CATEGORY LOG_PLATFORM orig_host PIPELINE | eval host=orig_host</param>
                <module name="TimeRangePicker" layoutpanel="panel_row1_col1">
                  <param name="searchWhenChanged">True</param>
                  <param name="selected">Last 15 Minutes</param>
                  <module name="SubmitButton">
                    <param name="allowSoftSubmit">True</param>