Ok... I haven't tested it with 6.4 but assuming the metadata formats haven't changed it should work.
Regarding pulling the old thread, rebuild the forum stat files for that particular forum and see if that cures it. If not, I'll have to figure a way to handle metadata being out of order. Maybe something of using the lastnumber and counting backwards and searching for existing files.
doing ubbnews.php?forum=9&threads=5 should pull 5 threads and tease them.
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