Brillaint! Thanks Robert!
<layer> <name>Traffic Cameras</name> <id>2</id> <url>http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Louisville/LOJIC_PublicSafety_Louisville/MapServer</url> <fields> <field name="ONLINE" alias="Camera Online" /> <field name="DESCRIPTION" alias="Description" popuponly="true" /> <field name="LAST_UPDATED" alias="Last Updated" popuponly="true" /> <field name="URL" alias="URL" popuponly="true" /> </fields> <links> <link includeinresults="false" field="URL" alias="" tooltip="View Traffic Image"> <linkprefix /> <linksuffix /> <iconfield /> <iconprefix /> <iconsuffix>http://help.arcgis.com/en/webapps/flexviewer/live/assets/images/i_camera.png </iconsuffix> </link> <link includeinresults="true" field="ONLINE" alias="get me out of here" tooltip=""> <linkprefix /> <linksuffix /> <iconfield /> <iconprefix /> <iconsuffix>http://help.arcgis.com/en/webapps/flexviewer/live/assets/images/i_globe.png </iconsuffix> </link> </links> <zoomscale>2000</zoomscale> <forcescale>true</forcescale> </layer>