The VG Resource

I don't know why but I can't login to any of the resource websites except of VG. I click on the login button and then it redirects me to the "Click here to return to the site you logged on from" and once I click on it or let it redirect to the page I was before, I still end up not being logged in as it still says I'm a guest. Am I doing something wrong or is this a genuine bug or something because I really don't know.
Help?

This is always one of two things. Either you have old cookies or you have an ad-blocker enabled. For the former, clear your cache and cookies and try it again. For the latter, try logging in with the ad-blocker either disabled or uninstalled (or try an alternate browser if you have one).