Problem with Asterisk Manager Interface through port 5038?

Server: Ubuntu 8.04

amportal.conf

AMPENGINE=asterisk
AMPMGRUSER=asterisk
AMPMGRPASS=12345
AMPWEBADDRESS=192.168.1.2

manager.conf

general]
enabled = yes
port = 5038
bindaddr = 0.0.0.0

[asterisk]
secret = a1ucard_X
deny=0.0.0.0/0.0.0.0
permit=127.0.0.1/255.255.255.0
read = system,call,log,verbose,command,agent,user
write = system,call,log,verbose,command,agent,user

My first problem is that I cant use user asterisk and password 12345 on the Asterisk Manager Interface. But when I try to use username:admin password:admin it has no problem???where did that admin admin came from???and why my user defind asterisk 12345 wont work???

My second problem, so since admin admin has no problem…might as well use it…but when I try to update the settings…it has an error [FATAL] Asterisk Manager Connection Failure Failed to connect to the Asterisk manager through port: 5038 .

I hope you can help me…

Thanks!!!

UPDATE…

I can now update my Asterisk Manager Interface…no more error through port 5038…i found my problem…my asterisk was not running…After I run the service, i was able to update mu AMI…

Thanks