Yes it does. I know it's not a very detailed answer but indeed it will accept it.
No.
You should use the official "Windows 7 DVD download tool" from Microsoft themselves for making Windows 7 DVDs
dvd
Use 'Windows DVD Burner' if you have Windows Vista or Windows 7. If not, use software such as 'Nero' or 'Roxio'.
Windows 7 Enterprise, is available for download via Microsoft.com. Windows 7 Enterprise, is an ISO file, just like the Windows 7 Release Candidate, and the Windows 7 Beta. So, as a result of that, after you install the Windows 7 Enterprise, your going to have burn the Windows 7 Enterprise, files to a blank recordable and rewritable DVD-RW disk, by using the Windows DVD Maker (if you have Microsoft Windows Vista). If you have Windows XP Professional, after you install the Windows 7 Enterprise, from Microsoft.com, your going to have to install, "ImgBurn" via, "ImgBurn.com." And, burn the Windows 7 Enterprise, files to a blank recordable and rewritable DVD-RW disk. If you have already installed the Windows 7 Beta, or the Windows 7 Release Candidate on your PC, then you should be able to install the Windows 7 Enterprise RTM the same way. However, if you've never installed any of the Windows 7 RTMs such as the Windows 7 Beta, or the Windows 7 Release Candidate, on your PC or on your notebook, then do a Google for, "Windows 7 Enterpise | FAQ." "FAQ" stands for, "Frequently Asked Questions." Or if you don't want to do that, then call Microsoft Tech & Support, get the phone number for Microsoft's Tech & Support hotline, by Googling, "Microsoft Tech & Support Phone Number." Or if you don't want to do that, contact someone that you know that knows a lot about PCs and notebooks, to help you out.
its easyer to burn
Yes
DVD or bootable USB.
If you have a DVD burner installed, putting in an empty writable DVD should bring up the Windows DVD writer wizard. Just follow the instructions.
Use a DVD ripper to convert the DVD to another type that Windows Phone 7 supports. Follow the guide bellow: 1) Download and install a DVD ripper 2) Load DVD 3) Set output format, MP4 is OK 4) Edit the video before converting if it's necessary 5) Start converting DVD to Windows Phone 7
Yes, you can.
Yes, Microsoft provide support for Windows 7.