strange problem strange with routerconfigs plugin!!!!

[hatiras]

Hi i need some of help, i have a very strange problem with the routerconfigs plugins, my cacti box works good but shortly i installed that plugin and dont work, appear in the plugins management but not any more signal of installation on my cacti box...

General Information
Date Sat, 17 Jul 2010 20:47:44 -0500
Cacti Version 0.8.7e
Cacti OS unix
SNMP Version NET-SNMP version: 5.4.1
RRDTool Version RRDTool 1.3.x
Hosts 80
Graphs 446
Data Sources Script/Command: 83
SNMP: 81
SNMP Query: 297
Total: 461
Poller Information
Interval 300
Type spine
Items Action[0]: 725
Action[1]: 81
Total: 806
Concurrent Processes 1
Max Threads 1
PHP Servers 1
Script Timeout 25
Max OID 10
Last Run Statistics Time:11.5288 Method:spine Processes:1 Threads:1 Hosts:79 HostsPerProcess:79 DataSources:806 RRDsProcessed:446
PHP Information
PHP Version 5.2.6-1+lenny3
PHP OS Linux
PHP uname Linux SuperDebianCacti 2.6.26-2-686 #1 SMP Wed Nov 4 20:45:37 UTC 2009 i686
PHP SNMP Installed
max_execution_time 30
memory_limit 128M

Cacti
Version: 0.8.7e
Plugin Architecture
Version: 2.6

1.- user management dont appear routerconfigs options.

2.- settings, misc dont appear routerconfigs options...

3.- the plugin management routerconfigs just appear "Old Plugin Architecture" dont running
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thnks...