Reaccessing adding new email accounts to my custom live domain

I have a registered domain.

Yesterday I successfully created an email domain via domains.live.com

I was able to set up the admin account and added a second account.

I was able to get the emails etc going.

Today I cam back and wanted to add extra email accounts, but on logging into domains.live.com it took me no where.

The only option I had was to recreate what I did.

Hoping that if I restarted that process it would jump  out and say its already done,here add more accounts here or similar.

But alas it did say that the domain was set up but scrubbed it then and said I had to redo the MX record etc.

@#$%^&!

H-E-L-P-!

(a) How should I have added the extra email accounts?

(b) Can I resurrect my settings without redoing things?

Thanks in advance