Outlook Connector problem!

Hey all!

Thanks in advance for reading and hopefully helping! I recently bought a Windows phone and used Outlook connector to sync my mailbox through Windows Live, on my phone and laptop.

Working seamlessly, now with both my hotmail and outlook accounts coming through my outlook, beautifully manageable in one place and syncing (like an exchange server?) on my phone. Bosh. I then decided to fiddle and broke stuff. Now, emails sent to my hotmail no longer come through my outlook and vice versa and essentially I've returned to having emails going to two seperate inboxes. But more importantly, I presume I'm no longer syncing any new contacts, diary entries etc with my Windows Live account?

So my questions are threefold:

1.) I think it's something obvious, but does anyone know what I've done?
2.) Will you be so kind as to tell me how to make it right?
3.) When will I learn that I'm not a computer programmer and if it ain't broke, don't fix it?

These are the fiddles that I can recall making...

1.) copied "sent items" from my old sent items folder (now in "personal folders" since my hotmail.com folders have become the default) to my new default sent items folder, to keep things in one place. (now reinstated in original folder)

2.) copied remaining emails from my old inbox, to the new (for reasons as above) and subsequently removing that inbox from my favourites folders. (now reinstated)

3.) removed the Pop3 account that I'd set up on my phone (now reinstated)

4.) changed the name of the "windows live" account on my phone to "Outlook". Now, though I seem to have changed it back to Windows Live, the icon on my phone only says "Hotmail."