The account that contains the image archive is SupermarioBrothersS where in its news posts it will contain links to images that make up the image archive. However the images that the news post links to will be stored in two places: Imageshack (majority of images) or in Dumping Grounds.
To store more images, you may make more NG accounts, ask people to donate their alternate accounts to you or use your own alts to store images that cannot be stored in Imageshack*. I prefer if you get an account that someone never uses (like an alt that's abandoned) as opposed to making a new account so that we don't waste more space on Newgrounds' Account Database.
If someone gives you their alternate account (alt account) you must change the account password, and the email address the account is linked to. The user who donated the account will lose access to the alt to prevent abuse (as in if we give them access they may delete the whole dumping grounds just to fuck up the image archive). If you, an image mod, have an alt you want to use for the image archive, you do not need to change the password unless it's the same as your main account password (Hint: that's never a good idea for your alt and main to have the same password).
*Images and files that are under the file size of 5.000 MB should be stored in Imageshack. Images and files that exceed 5.000 MB should be stored in Dumping Grounds. Each image moderator gets their own Imageshack account for the image archive, so sharing of a single imageshack account is not allowed. If you have an imageshack account, it is strongly recommended you make a separate one just for the image archive.
You MUST share all account passwords (that uses Dumping Grounds to host images - except if you're willing to use your main account(s)' DG to store images) to the image mods, or at least to me (the "administrator") if not to the mods. This can be simply done by sending the image archive account a PM with the account names and passwords in them (think of the PM inbox as our own little private forum) so only the image mods can read them. If you don't want to give all the mods the account password, then send a PM to me. You can send only some or don't need to send the passwords to the image mods at all, but you MUST send me the password to that account for security reasons (unless it's your main account's DG that is hosting the images) and so that I can keep a record of all accounts used for maintenance purposes. Failure to do so will result in suspension of account privileges. The only exception to this rule is if the images are stored in your main account(s).
Anything that must be kept confidential between the image mods should be discussed in the private image mod chat, sent to the image archive account's PM inbox or kept in PM between the two image mods. It should not be discussed in a public location. Even discussing stuff in an abandoned news post that nobody is likely to see is not allowed. The link and the password to the private image moderator chat can be found in the PM inbox of the image archive account.
If there is anything that is unclear, a PM should be sent to this account with the question regarding the unclear part.