Index: lams_central/src/java/org/lamsfoundation/lams/web/DisplayGroupAction.java
===================================================================
diff -u -rf4a2fe4d33e9e1302ac33016fc6f4a45b629c37e -rdda4ba88f5e0bd4d7e59f1e3b31914fd6a563208
--- lams_central/src/java/org/lamsfoundation/lams/web/DisplayGroupAction.java	(.../DisplayGroupAction.java)	(revision f4a2fe4d33e9e1302ac33016fc6f4a45b629c37e)
+++ lams_central/src/java/org/lamsfoundation/lams/web/DisplayGroupAction.java	(.../DisplayGroupAction.java)	(revision dda4ba88f5e0bd4d7e59f1e3b31914fd6a563208)
@@ -52,6 +52,8 @@
 import org.lamsfoundation.lams.usermanagement.User;
 import org.lamsfoundation.lams.usermanagement.UserOrganisationRole;
 import org.lamsfoundation.lams.usermanagement.service.IUserManagementService;
+import org.lamsfoundation.lams.util.Configuration;
+import org.lamsfoundation.lams.util.ConfigurationKeys;
 import org.lamsfoundation.lams.util.IndexUtils;
 import org.lamsfoundation.lams.util.WebUtil;
 import org.springframework.web.context.WebApplicationContext;
@@ -139,7 +141,7 @@
 				}
 				if(contains(roles, Role.ROLE_GROUP_MANAGER) || contains(roles,Role.ROLE_MONITOR))
 					links.add(new IndexLinkBean("index.addlesson", "javascript:openAddLesson(" + org.getOrganisationId()+",'')", "add-lesson-button", null));
-					links.add(new IndexLinkBean("index.searchlesson", "javascript:openSearchLesson(" + org.getOrganisationId()+",'')", "search-lesson-button", "index.searchlesson.tooltip")); 
+					links.add(new IndexLinkBean("index.searchlesson",  Configuration.get(ConfigurationKeys.SERVER_URL) + "/findUserLessons.do?dispatch=getResults&courseID=" + org.getOrganisationId()+"&KeepThis=true&TB_iframe=true&height=400&width=600", "thickbox"+org.getOrganisationId(), "index.searchlesson.tooltip")); 
 			}else{//CLASS_TYPE
 				if(contains(roles, Role.ROLE_GROUP_MANAGER) || contains(roles,Role.ROLE_MONITOR))
 					links.add(new IndexLinkBean("index.addlesson","javascript:openAddLesson("+org.getParentOrganisation().getOrganisationId()+","+org.getOrganisationId()+")", "add-lesson-button", null));
Index: lams_central/web/includes/javascript/groupDisplay.js
===================================================================
diff -u -r7d9b1ecc6b646f361da0b093af9f852de30e182a -rdda4ba88f5e0bd4d7e59f1e3b31914fd6a563208
--- lams_central/web/includes/javascript/groupDisplay.js	(.../groupDisplay.js)	(revision 7d9b1ecc6b646f361da0b093af9f852de30e182a)
+++ lams_central/web/includes/javascript/groupDisplay.js	(.../groupDisplay.js)	(revision dda4ba88f5e0bd4d7e59f1e3b31914fd6a563208)
@@ -16,6 +16,7 @@
 							toggleGroupContents(element, stateId);
 							registerToolTip(element);
 							jQuery(element).css("display", "block");
+							tb_init('a.thickbox'+jQuery(element).attr("id"));
 						}
 					);
 				}
Index: lams_central/web/includes/javascript/openUrls.js
===================================================================
diff -u -r9f625d1d3925aab8738ae9e64b736cd40a47b015 -rdda4ba88f5e0bd4d7e59f1e3b31914fd6a563208
--- lams_central/web/includes/javascript/openUrls.js	(.../openUrls.js)	(revision 9f625d1d3925aab8738ae9e64b736cd40a47b015)
+++ lams_central/web/includes/javascript/openUrls.js	(.../openUrls.js)	(revision dda4ba88f5e0bd4d7e59f1e3b31914fd6a563208)
@@ -291,10 +291,4 @@
 				}
 			}
 		}
-		
-		function openSearchLesson( courseID, classID ) {
-			window.open('findUserLessons.do?dispatch=getResults&courseID='+courseID+'&classID='+classID,'slWindow','width=610,height=480,scrollbars');			
-		}
-		
-			
 	//-->
Index: lams_central/web/main.jsp
===================================================================
diff -u -r79a6575d49778884cc7d23d028fe14e70ad04a4b -rdda4ba88f5e0bd4d7e59f1e3b31914fd6a563208
--- lams_central/web/main.jsp	(.../main.jsp)	(revision 79a6575d49778884cc7d23d028fe14e70ad04a4b)
+++ lams_central/web/main.jsp	(.../main.jsp)	(revision dda4ba88f5e0bd4d7e59f1e3b31914fd6a563208)
@@ -26,10 +26,12 @@
 	<lams:css style="tabbed" />
 	<link rel="icon" href="<lams:LAMSURL/>/favicon.ico" type="image/x-icon" />
 	<link rel="shortcut icon" href="<lams:LAMSURL/>/favicon.ico" type="image/x-icon" />
+	<link rel="stylesheet" href="<lams:LAMSURL/>/css/thickbox.css" type="text/css" media="screen">
 	<script language="JavaScript" type="text/javascript" src="includes/javascript/getSysInfo.js"></script>
 	<script language="javascript" type="text/javascript" src="loadVars.jsp"></script>
 	<script language="JavaScript" type="text/javascript" src="includes/javascript/openUrls.js"></script>
 	<script language="JavaScript" type="text/javascript" src="includes/javascript/jquery-1.1.4.pack.js"></script>
+    <script type="text/javascript" src="<lams:LAMSURL/>/includes/javascript/thickbox-compressed.js"></script>
 	<c:if test="${empty tab}">
 	<script language="JavaScript" type="text/javascript" src="includes/javascript/jquery.dimensions.pack.js"></script>
 	<script language="JavaScript" type="text/javascript" src="includes/javascript/interface.js"></script>