Hello,
(ANS) No.1 I am NOT at all surprised you are thoroughly confused here, Ubuntu Linux is a 100% completely different OS and bears absolutely no! comparison to Microsoft Windows Vista.
No.2 Sorry! But you haven't done your home work here, if you had you wouldn't be on answers asking these questions.
No.3 Ubuntu Linux is a wonderful version of Linux for the desktop but it uses a HP (high performance) filing system which is NOT compatible with windows vista's NTFS filing system. This means that the two OS cannot see each other and therefore cannot smoothly or seamlessly swap files between each other.
No.4 NOP!! MS Windows software including programs like MSN WONT run on Ubuntu Linux. You have to find & install specific Linux compiled software, the setup & installers have to be specific for Linux.
No.5 Some years ago Linux was just a geeky type of operating system, an alternative to Microsoft windows but few gave it house space and what let Linux down back then was the sheer lack of major applications. Now this has radically changed, the range of good quality usable software for Linux has exploded and this makes something like Ubuntu increasingly attractive.
SEE:- Open Office for Linux, FireFox for Linux,etc.
**Sadly, Linux uses such a completely different technical language for terms, acronym's, labels and descriptions, commands,etc its quite a steep learning curve as they say. Especially for someone who has used Microsoft for many many years.
**The other thing that does tend to let linux down in contrast to MS is the access to technical support. OR should I say the difficulty or lack of easy access. This I'm certain puts off many people who would otherwise embrace linux for sure.
Kind Regards Ivan
windows user since 1989.