Its in the WHERE clause. Off the cuff it should probably be more like:
Member_ID = cLng(Request.QueryString("MEMBER_ID"))
strSql = "SELECT TOP 5 T.TOPIC_ID, T.T_SUBJECT, T.T_DATE, T.T_SUBJECT, T.T_MESSAGE, T.T_AUTHOR, T.FORUM_ID, M.M_NAME, M.MEMBER_ID "
strSql = strSql & " FROM " & strTablePrefix & "TOPICS T, " & strMemberTablePrefix & "MEMBERS M"
strSql = strSql & " WHERE M.MEMBER_ID = T.T_AUTHOR
AND T.T_AUTHOR = " & Member_ID & " "
strSql = strSql & " ORDER BY T.TOPIC_ID DESC"
The part in red should also make sure that the author is the member ID you are passing.
Like I said at the beginning, this is near the end of the day for me and is off-the-cuff, so treat accordingly ... make a backup first.

<