For your topic.asp file, you seen to have copied the SQL query from the topic.asp file that came with the poll mod to your file. Your file already had the PM mod installed. So you overwrote the PM mod code when you copied the poll mod code over.
M_PMRECEIVE and M_AVATAR_URL should be in the sql query that starts at line 103.
strSql = "SELECT M.M_NAME, M.M_RECEIVE_EMAIL, M.M_AIM, M.M_ICQ, M.M_MSN, M.M_YAHOO" & _
", M_PMRECEIVE, M.M_TITLE, M.M_HOMEPAGE, M.MEMBER_ID, M.M_LEVEL, M.M_POSTS, M.M_COUNTRY" & _
", M_AVATAR_URL, T.T_DATE, T.T_SUBJECT, T.T_AUTHOR, T.TOPIC_ID, T.T_STATUS, T.T_ISPOLL, T.T_POLLSTATUS, T.T_LAST_EDIT" & _
", T.T_LAST_EDITBY, T.T_LAST_POST, T.T_SIG, T.T_REPLIES" & _
", C.CAT_STATUS, C.CAT_ID, C.CAT_NAME, C.CAT_SUBSCRIPTION, C.CAT_MODERATION" & _
", F.F_STATUS, F.F_POLLS, F.FORUM_ID, F.F_SUBSCRIPTION, F.F_SUBJECT, F.F_MODERATION, T.T_MESSAGE"
Lines 940 and 941 in your post.asp file looks like this:
Response.Write " <td bgColor=""" & strPopUpTableColor & """ noWrap vAlign=""top"" align=""right""><font face=""" & strDefaultFontFace & """ size=""" & strDefaultFontSize & """><b>Message:</b><br />" & vbNewLine & _
" <br />" & vbNewLine & _
Change it to this:Response.Write " <br />" & vbNewLine & _