User ID: $context.getRequestParameter("userid")
New Class: $context.getRequestParameter("newclass")
Move Tests: $!context.getRequestParameter("movetests")
Comments: $context.getRequestParameter("comments")
Link: 
 <a  href="$content.siteroot$apphome/admin/moveuser.html?userid=${user.id}&movetests=$!context.getRequestParameter("movetests")&newclass=$context.getRequestParameter("newclass")">TRP</a>