[CentOS] cups error 426 when accessing admin functions

Hello,
I've got a centos 5 machine running the latest cups rpm v1.2.4. I've 
included my config minus comments below. My problem is via a web browser i 
can access the / resource without a problem, but when either clicking on any 
admin function or direct browsing to an admin address /admin i get a message 
error 426 upgrade required and i'm told i have to connect to an https 
address of the same name. When either clicking on that address or direct 
browsing to it i am getting an error 404 page not found. This config worked 
previously in 1.22 so i am not sure where my issue is. I'd appreciate any 
help.
Thanks.
Dave.

ServerName wserv.davemehler.net
ServerAdmin dmehler26 at woh.rr.com
AccessLog /var/log/cups/access_log
DataDir /usr/share/cups
DefaultCharset utf-8
DefaultLanguage en
DocumentRoot /usr/share/doc/cups-1.2.4
ErrorLog /var/log/cups/error_log
LogFilePerm 0600
MaxLogSize 2000000000
LogLevel info
MaxLogSize 10485760
PageLog /var/log/cups/page_log
PreserveJobHistory Yes
PreserveJobFiles No
AutoPurgeJobs No
MaxCopies 100
MaxJobs 500
MaxJobsPerPrinter 0
MaxJobsPerUser 0
MaxPrinterHistory 10
Printcap /etc/printcap
PrintcapFormat BSD
RequestRoot /var/spool/cups
ServerBin /usr/lib/cups
ServerRoot /etc/cups
ServerTokens ProductOnly
ServerCertificate /etc/cups/ssl/server.crt
ServerKey /etc/cups/ssl/server.key
User lp
Group sys
RIPCache 8m
TempDir /var/spool/cups/tmp
FilterLimit 0
Listen 127.0.0.1:631
Listen 192.168.0.4:631
HostNameLookups Off
KeepAlive On
KeepAliveTimeout 300
MaxClients 100
MaxClientsPerHost 0
MaxRequestSize 0
Timeout 300
Browsing Off
BrowseProtocols cups
BrowseAddress 192.168.0.255
BrowseShortNames Yes
BrowseAllow from @LOCAL
BrowseInterval 30
BrowseOrder allow,deny
SystemGroup root
<Location />
Order Deny,Allow
Deny From All
Allow From 127.0.0.1
Allow From 192.168.0.0/24
</Location>
<Location /admin>
Require group printer-admins
AuthType Basic
Order Deny,Allow
Deny From All
Allow From 127.0.0.1
Allow From 192.168.0.0/24
</Location>