Problem with Mac OS Client

Hi,
I have a PowerPC (PPC) Mac Mini with which I'm trying to contact a VPN3000 private network.
Under Windows XP, the connection works fine, I get an IP address, a virtual adapter appears under "ipconfig" and I can contact the host I need to get to.
Under Mac OS 10.4.8 (PPC) with VPNclient 4.9.0050, it seems to connect, but I can't contact the client. It appears that no routes are setup, nor a virtual adapter. Here's the output from "vpnclient" - note the lack of routes..
Can somebody help!? TIA. Tom
walden-lodge:~ tom$ /usr/local/bin/vpnclient stat
Cisco Systems VPN Client Version 4.9.00 (0050)
Copyright (C) 1998-2005 Cisco Systems, Inc. All Rights Reserved.
Client Type(s): Mac OS X
Running on: Darwin 8.8.0 Darwin Kernel Version 8.8.0: Fri Sep 8 17:18:57 PDT 2006; root:xnu-792.12.6.obj~1/RELEASE_PPC Power Macintosh
Config file directory: /etc/opt/cisco-vpnclient
VPN tunnel information.
Connection Entry: westbury
Client address: 192.168.101.11
Server address: 85.41.89.219
Encryption: 56-bit DES
Authentication: HMAC-MD5
IP Compression: None
NAT passthrough is active on port UDP 4500
Local LAN Access is disabled
VPN traffic summary.
Time connected: 0 day(s), 00:00.16
Bytes in: 0
Bytes out: 431
Packets encrypted: 3
Packets decrypted: 0
Packets bypassed: 13
Packets discarded: 0
Configured routes.
Secured Network Destination Netmask
0.0.0.0 0.0.0.0
walden-lodge:~ tom$ ping 192.168.1.5
PING 192.168.1.5 (192.168.1.5): 56 data bytes
ping: sendto: No route to host
ping: sendto: Host is down
^C
--- 192.168.1.5 ping statistics ---
7 packets transmitted, 0 packets received, 100% packet loss

I am trying to using VPN client 4.9 on a G5 (dual processor) OSX 10.4.8. I read and reread the instructions. I go to the command line and copy the INI and profiles into the installer.
When I try to open the VPN client I receive "Error 51: Unable to communicate with the VPN subsystem". The only information I can find on Error 51 is that it is a windows error. Some help. I can't even uninstall the software.
Is any one else having this problem?

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    I think the wifi capabilities of the Motorola NVG510 modem are the cause of a lot of problems with AT&T Uverse issues, particularly for Mac owners. I think it was also causing my Airport Expresses to drop occasionally.... Few minutes of music then drop... music drop.... All gone now.
    I don't know if you are on Uverse but if so, I highly recommend configuring a second router as an acces point (it can be any old router you still might have - the setup is just a bit trickier because you have to do it manually).
    Good luck.

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