Outlook 2010 major problem

Hope someone can help me, my outlook 2010 was going crazy, adding loads of suggested contacts folders with nothing in. I could not make my contacts folder be seen as an outlook address book, which was a problem as i use it as a mail merge for my christmas cards. I was trying to sort all this out and i accidentally deleted the folder with my emails in. Are they stored anywhere so that i can see them as i have some email receipts I desperately need.
I hope someone can help and i would be very grateful.

Sorted it now thanks

yes, sorry, thought everyone would think I was thick for not knowing!!!!!!

I found the pst file in my computer, I knew it was the one cos it was the biggest file. I then went into outlook, file, open, open outlook data file and opened the pst file. It was then put back into my mail files, thank heavens. Thanks.

I'm having a problem with Suggested Contacts in Outlook 2010 on Windows 7 64 Bit. I've imported my NK2 file and my Suggested Contacts list is populated and everything works fine until I close and reopen Outlook. Then the Suggested Contacts no longer works even though it's fully populated with contacts. Now every day (or every time I open Outlook) I have to import my NK2 to get it to work. I've tried creating a new Outlook profile, I've uninstalled and reinstalled Office and I've logged into a different Windows account and configured Outlook and had the same problem. Has anybody seen this? I can't find any info online. Thanks.