HI.
I assume that you have the configuration in plain text, for example you did copy & paste from a telnet session. Is this correct?
If you have used tftp, then my answer will not apply correctly.
First, clear the current configuration from new device, using the serial console cable (telnet will not work after reload).
write erase
reload
Now enter configuration mode:
enable
conf t
And paste the configuration.
You can paste the whole config, or line by line. In any case, look for error and informational messages at the pix console if any.
Test the new configuration.
Is anything working properly?
Can you access the pix using telnet?
Can you get into enalbe mode?
Can you access the pix using PDM?
After verifying that it is OK, save the config:
write mem
Do not save the config if you are not sure about the enable password.
If you have configured the pix for VPN, then some statements like "isakmp key" and "vpngroup ... password" will need to be reentered with the correct passwords.
Bye
Yizhar Hurwitz