Plugin not parsing variables

[Simon Lloyd]

Hi, i've created a plugin with the following code

$template_hook[postbit_user_popup].='<if condition="in_array($post[usergroupid], array( 1,2,3,4,5,6,7,8,9,10,11,12,13,14))"> <if condition="is_member_of($vbulletin->userinfo, array( 5,6,7))">
<tr><td class="vbmenu_option"><a href="iptest.php?domain=$post[ip]">WhoisIP for $post[username]: $post[ip]</a></td></tr>
</if></if>';

However the $username and $post[ip] stay exactly like that, they're not getting parsed?

I am using postbit_display_complete as the hook location (and i've tried others) so i don't understand why those aren't getting the data, if i code it by hand in the postbit template it works fine?

Any suggestions would be welcome.