Back to the original topic...
I recently contacted Pentax about an M42 adapter. They gave me the item number for the Pentax webstore. This item number, of course, no longer exists. (They also sent me a link for the K10D manual for adapter info...this pdf document also does not exist anymore.) 0-for-2 so far.
They then told me to contact Pentax directly instead of the web store. I sent an email to the address they gave me...which then was automatically forwarded to the webstore, which told me to contact Pentax directly, etc., etc.
I'll try a phone call tomorrow.