If you can help, please remember you are dealing with someone who hasn't got a clue about these things, so you would have to be extremely basic in your reply.
I would be very, very grateful.
Best answer by woz
we may have to do this a step at a time,
go to https://purepla.net in your browser.
click on the little head icon top right, and enter your email ( the one you used when you joined pure planet.) close that tab
now go to your email,
you should get an email to log in, open it and look for the big pink login button
post back if you get that far, someone will help