Depending on how far back in the topics you are "searching", you might just need to adjust your "filter" to look back 45-60 days. There are some older discussions regarding first change intervals and regular intervals. If I remember correctly, you will see a variety of opinions and some links to other references there.
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Jeff
'01 SS EX
Cassette, Video System, Fog Lights, Splash Guards
See photos at:
http://www.fototime.com/inv/B5EC5C7BC6CFA07