Well, depending on your 4chan settings, you can either highlight the link and then right click, select open in new tab from the drop down menu and then you'll have a mediafire page open.
Next you'll see folders labeled 2011, 2012, 2013, and 2014. You click on one of them and you'll be taken to inside one of the folders which will have a list of .rar files (I did not have a better compression program available to me at the time, you can open them using 7zip just fine and extract the files). Each of the files is named in the month/day/year format to indicate on which day the thread was made. Looking to the right, with your cursor on top of one of these files, you will see an arrow pointing down, you click the arrow and a menu will appear. One of the options will be "download".
Once you've downloaded the .rar there will be a folder inside of it, extract the folder and inside this folder there will be one html file, several image files, and a subfolder for thumbnails.
Clicking the html file will open a 4 to 7 year old offline saved copy of a thread that happened on /co/. The AT drawthread.
This process will need to be repeated for each individual file in each folder on the mediafire site. It is incontinent, I know, but those were times when we did not have things like archivefoolz, or archive.moe, or desuarchive, and archive.no
-ip had just recently died and took everything with it before foolz started archiving /co/.
So bi-weekly uploads were necessary due to no archive online archive keeping up with /co/ at the time.