i've never try this Mod, so not sure what's problem..... but usually we can just use MemberID to get the user's id.
so may you want to try this... ............. &ReporterID=<%=rs("MEMBER_ID")%>'&TOPIC_TITLE=<%=Request.QueryString("Topic_Title")%>> change to ............. &ReporterID=<%=MemberID%>&TOPIC_TITLE=<%=Request.QueryString("Topic_Title")%>'>
and also i think the small ' , should be a little change its place..( move to the end before > )