How do I do this?
Is there a certain amount of times you can do this?

You can do it many times as you want. I think you go to Disneyland.com (I think) and then look for like my account or log in, click it, and if your not logged in, log in with your VMK username and password, and if you are logged in, look for something that says my account or settings and then it should have an option for you to change your email and password.

Hope that helps! ;)

Go to Disneyland.com

Click on Log In https://secure.disney.go.com/media/dlr_v0200/en_US/_global/modules/navigation/LogInLink.gif

Click on "My Profile"

Click on "Edit" https://secure.disney.go.com/media/dlr_v0200/en_US/myVacation/myProfile/editTopButton.jpg

Hilite your current password, then backspace/delete, type in your new password

Click on "Update" https://secure.disney.go.com/media/dlr_v0200/en_US/myVacation/myProfile/bttn_top_update-active.jpg

This Guide (http://www.vmkforums.com/forums/showthread.php?t=4799) was originally made for forgotten Birth Dates, but if you remember your password that you want to change, you could use it to change your password as well.

Go To Disneyland.Com and press Log in and go to my profile and then you edit it or something like that.