I forgot to clarify, the file just shows up as an audio file within Premiere, however, it is not just an audio file.
Congrats. You are now in for a complete format of your C: drive and a fresh install of everything, because you installed codec packs.That is a cardinal sin and now you have to suffer the consequences. Well, it could have been worse, your actions could have burned down your house...
After you format your drive to remove those codec packs, you need to find the SPECIFIC codec you need
Read Bill Hunt on a file type as WRAPPER http://forums.adobe.com/thread/440037
What is a CODEC... a Primer http://forums.adobe.com/thread/546811
What CODEC is INSIDE that file? http://forums.adobe.com/thread/440037
Report back with the codec details of your file, use the programs below... a screen shot works well to SHOW people what you are doing
Once you know the SPECIFIC codec used by that camera, come back and ask for more information
I think the format is H.264 wrapped in avi, and unfortunately Premiere does not support this format.
Record in mov.