Ok i said i was going to come up with some sort of tutorial on how to use them so here it is.(thought a new thread might be a better idea)
Ok things you will need
Firefox(as i only know how to do this with firefox however some googling will help to find out how to edit the cookies in your chosen browser)
Cookies Manager+ https://addons.mozilla.org/en-US/firefox/addon/cookies-manager-plus/
cookies
step #1
sign up with the filehots that you want to use as we need to generate the free user cookies for this
step #2
Using the cookie manager+
in FF4+ it's found at orangebutton> web dev> cookie manager+
choose the cookie you wish to edit ( see cookie key below)

then hit refrsh and if the cookie works the user name should have changed and the account status should be showing premium rather than free
Cookie Key
Hotfile = “auth”
Filesonic = “PHPSESSID”
DepositFiles = “autologin”
Megaupload = "user"
oron = “xfss”
rapidshare = "enc"
netload.in = “co ok ie_user”
cookie sources
http://www.absba.org/showthread.php?t=1096962&page=482
http://www.zyzoom.org/vb/showthread.php?t=231098&page=158
http://www.mohamedsat.blogspot.com/
premium accounts
http://jdownpremium.blogspot.com/
(if this happens to be against a rule or two then close at will)
PS: feel free to ask for a rewording cause Im not too good at explaining things like this.

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