The link under the Tech FAQ page still points to an old version of the 2-button alarm booklet (in PDF format).
I reissued this PDF earlier this year as 'revision 12' dated '2008/Apr/16' (see bottom of last page) in a more readable typeface, with corrections and contact details for replacement remote shells and kits.
If anybody wants a copy of the latest version, please send me a PM with a contact E-mail address and I'll attach it to a return E-mail.

The PDF was transcribed from Honda's original booklet, but if anyone spots another error/omission, please advise me via PM.