there are two things that you can do
first please understand what is happening. You must have an old dormant account with that email address. or you accidentally set it up and started over not thinking it went through. that is why you cant make a new one with that email address.
what you can do
A. Just use a different email address to create the account. Most people have more than one these days or you can easily make a new one at www.yahoo.com or gmail.com or live.com
B. instead of trying to make a new account try to log in to the account using the email address you tried to make this one with. then hit the lost password ***** and it should have an option to send an email to you with a link to reset the password.
hmmm. it says you dont have one linked to your facebook account maybe you can try setting one up that way.
if you want to accept my offer i can log in remotely to get it set up on your computer or set one up for you on mine while we talk on the phone.
thats just strange. are you trying to use the same email address as facebook is using ?
this is why if i could log in remotely i might see something that you dont think to look for.
but again the easiest thing might be to just use a totally new email address.
Accept the offer and i will get you my phone number and a link to software that will let me log into your computer and we can both look at it and work on it together.