OK.. if they are there then the fix should be easy. The way it finds which articles to put in the forum at the moment is by using the following query:

SELECT a.forum, a.msgid, a.dtm, a.subject, a.poster, a.body, a.ord, b.threadid, c.ref FROM usenet_article AS a, thread AS b, usenet_ref AS c, post AS d WHERE a.msgid=c.msgid AND c.ref=b.msgid AND b.forumid=$group->{forumid} AND d.msgid=b.msgid AND ((d.ord + 1 = a.ord) OR (d.ord=a.ord))

This must flawed in some way. I was going to do it by looping through the records but I thought I'd be clever by doing it in one go with this query. I'll look into it and find another way of picking the articles. In the meantime, leave the missing articles where they are. When I give you the fix it should just pick them up and move them to the forum.

One last thing, can you look at the 'ord' and 'refs' column in the usenet_article table for the missing posts. Make sure that something is listed in the 'refs' column and let me know what the 'ord' number is. Then do the same for the 2 messages that in the posts table and check the 'ord' column.