I have tried with Google Chrome and Internet Explorer, both double checked to have cookies on.
Basically I can log in, it will give me the confirmation page, but clicking "Click to Continue" takes me back to the log in page
I have noticed that the collections login is case sensitive.
I used to always login with "dlitwin" and couldn't understand why it wasn't working. I don't know if this is the problem, but it is worth checking if you are logging in with "TheCubingKyle" or perhaps "thecubingkyle".