faulty form not going to "post" destination

[sabret00the]

for some reason this form seems to submit back upon itself rather than going to it's designated destination, can anyone see anything wrong with this code?

 <form name="grps_addgroup" method="post" id="add_group" action="index.php?$session[sessionurl]" source="index.php?$session[sessionurl]do=creategroup">
 <input type="hidden" name="userid" value="$bbuserinfo[userid]" />
 <input type="hidden" name="action" value="docreategroup" />
 
 <fieldset>
 	<legend>Add New Group</legend>
 		<table width="100%" cellpadding="$stylevar[cellpadding]" cellspacing="0">
 			<tr class="alt1">
 				<td width="50%">
 					Desired Group Name
 				</td>
 				<td width="50%">
 		    		 <input name="gprs_title" type="text" />
 				</td>
 			</tr>
 			<tr class="alt2">
 				<td>
 					Description
 				</td>
 				<td>
 		    		 <textarea name="gprs_description" cols="40" rows="4"></textarea>
 				</td>
 			</tr>
 			<tr class="alt1">
 				<td>
 		    		Group Catorgory (code so done on the fly)
 				</td>
 				<td>
 $cat_drop
 				</td>
 			</tr>
 			<tr class="alt2">
 				<td>
 		    		Are You Applying To Be Group Leader Also?
 				</td>
 				<td>
 		    		 <label>Yes: <input type="radio" name="grps_leader" value="$bbuserinfo[userid]" /></label>
 		    		 <label>No: <input type="radio" name="grps_leader" value="NULL" /></label>
 				</td>
 			</tr>
 			<tr class="alt1">
 				<td colspan="2" align="center">
 		    		<input type="submit" name="grps_submit" value="Submit This Group For Creation Moderation" accesskey="s" />
 				</td>
 			</tr>
 		</table>
 </fieldset>
 </form>