[admin page login v6.1.1]

Sorry, it is not working. I always come back to the store with the message
 

404 - Page Not Found

Sorry but the page you are looking for could not be found.

 

[admin page login v6.1.1]

I have updated my cubecart to 6.1.1 and saw that the address to the admin login page has been changed. 

I often login from different machines to check and add new products, but now I can't do this anymore.
Is there any chance to get in again?

P.S.: I have used the _xxx.php* added but still it's not working.

* xxx replaced with the letter-number-combination found in my FTP folder admin_xxx

[[Resolved] 6.1.0 to 6.1.1 Upgrade Issue]

I have the same issue. I tried to upgrade, but it doesn't do it. 

@THE STAFF: Is it recommended to install manually or to wait till you come up with a solution?