I have LOST my ADMIN ACCESS after I accidentally clicked on "restore default settings", instead of "UPDATE" when I was in the CONFIG tab.What do you mean by that? What does "admin access is gone" actually mean. Provide details if you need help.
The ADMIN access is gone.
Does your admin login not stick? Does your admin login not work in the first place (i.e. do you get an error message that says "couldn't log you in, try again").
Nothing is working.is not a valid answer. Provide a detailed description of what you do and what you see during the login process. Don't type adresses into the browser's address bar manually - this won't help you if your login doesn't work in the first place.
So the basic issue is that login works, but doesn't stick. This is usually related to cookie issues. Do you have third-party tools installed on your desktop that interfere with cookies? Notorious "Norton Internet Security" and similar pseudo-security crap comes into mind.
Additionally, you're running cpg1.4.10, while the most recent stable release is cpg1.4.12 - upgrading is mandatory.