Vista Tutorial - Windows Live Mail Stopped working after trying Beta Upgrade Many Problems Help!!

PELASE Some one HELP Me!!!
I am getting so frustrated as in trying to get help. Over last weekend I came across the new free upgrade for Windows Live Mail Beta. I was already using Windows Live Mail and Messenger, and I also have Windows Live Hotmail. Within days of downloading the Beta, I noticed how slow my PC was running and that I was having problems with getting in to programs and to use the Internet, at times I was waiting up to 15 minutes to open anything whether it was opening Windows Live Mail, Windows Live Hotmail, getting on to the Internet...ect. When I downloaded Beta, it did say that if I wanted t uninstall it, it would not bother my Windows Live Mail, or any of the programs I had before, so I uninstalled it and NOW I HAVE PROBLEMS BIG TIME and I am at the Point of major:mad:frustration and I don't want to make it worse so I am asking for help from anyone as I have just been running in circles by other higher up company person's.
After uninstalling the Beta, Windows Live Messenger is working just fine now, however, when I try to open Windows Live Mail in anyway the page will come up but within seconds a box comes up saying "Windows Live Mail has stopped working!" I haven't even signed in yet or anything! At first I clicked on the 'Check online for a solution and close the program', but nothing happened. So I clicked on the 'Show details' and this is the list it showed:
Problem Signature:
Problem Event Name: APPCRASH
Application Name: wlmail.exe
ApplicationVersion: 12.0.1606.1023
Application Timestamp: 471e445f8
Fault Module Name: UXCore.dll
Fault Module Version:12.0.1606.103
Fault Module Timestamp:471e445f
Exception Code: c0000005
Exception Offset: 000283d8
OS Version: 6.0.6001.2.1.0.768.3
Local ID: 1033
Additional information abot the problem: LCID: 1033
Please Help Me!!!
When I do get into Windows Live Hotmail, at times when I select to open mail, or to delete something or to forward anything it just closes and I'll be looking at the desktop but there will be a message bar like: where the Delete button was and it will look and be in the spot where the button is on the page/site that just poofed-and -be-gone, and the only way I can get rid of them is to restart my PC. I have also started to get Error messages like'Internal Server Error.' The sever encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administor.
Pelase to anyone who can help please give te steps and try to explain in real easy terms as I still have a lot to learn about when it comes to the PC. Thanks
Frustrated:sa:and hopeful Crazyone...

Thanks again.