[plt-scheme] 4.0.1.2-svn26June2008 installed on OpenBSD

Hi folks,

It's been sometime since I've been able to install a copy of
PLT (circa Aug, 2007).  I was wondering if someone would be
kind enough to bring me up to date with v4.0.1.2.  When I
choose `Help Desk', I get a live web browser version.  My
install was from the `unix source' onto OpenBSD from a tar
ball download.  Is there still a method to construct a local
copy of the `Help Desk'?

Also, I note in the doc that R6RS is an available language
choice, but I only see R5RS and company.  Do we have an R6RS
implementation, and if so, how do I access it?

Sorry for the dumb questions, but it's been quite a while.

Thanks,

--kyle