There is the backup option in cPanel, so you could create a backup of your file and then upload it to your ISP webspace. Or you could manually download all the files that you want using FTP then upload them to your ISP webspace.
1) We are in the process of changing the servers around. After we are done server uptime should be much better.
2) No you cannot change your PHP Version.
1) We do not do it on purpose, we try very hard to keep our servers running, but it isn't easy.
2) Hellsheep asked you a question, and you haven't answered it.
First you need to buy a domain either from x10 or from another domain register. The you should change the nameservers for your domain to ns1.x10hosting.com and ns2.x10hosting.com
Then you can add you domain in cPanel.
Stoli has literally thousands of accounts on it which means that it is quite stable. The Admins are currently moving accounts to new servers and changing the way that accounts are distributed across the servers. This should make things much more stable.
First you need to login to the Domain Register's Control Panel and change your domain's nameservers to ns1.x10hosting.com and ns2.x10hosting.com
Wait a few hours.
Then login to the AMP at http://x10hosting.com/account (Use you Forum details to login). About halfway down the page you will see the...
Please read this then post back:
http://forums.x10hosting.com/upgrades-downgrades-changes/61295-how-ask-upgrade-downgrade-delete-your-hosting-account.html
If you have not logged into the x10 Forums in over a month it is also certain that your account has been deleted.
If you want to sign-up again you will need to visit http://x10hosting.com/logout first.