Ubuntu, unlike the majority of Linux distributions, has the ROOT account disabled by default. The regular user can perform some ROOT activities using the "sudo" command in the terminal. Sudo gives the regular user temporary and limited ROOT-like abilities. However, it's not a full ROOT access.
In order to activate the ROOT account in Ubuntu, some steps need to be taken. However, it is NOT recommended by Ubuntu. It's also NOT something that an inexperienced Linux user should be playing around with. ROOT gives you ULTIMATE power on your Linux system... the power to destroy also. One wrong click or command as ROOT can totally trash your operating system.
If you're still interested in learning about ROOT/SUDO and their differences, there is a post about it at the Ubuntu site:
https://help.ubuntu.com/community/RootSudo
___________________________________________________________________________ ____________
Unfortunately, I'm not at all familiar with WINE. If you can't get assistance here, then you can try the Ubuntu forums. The link is above in my first post to you. Another excellent source of assistance is
Scot Finnie's Newsletter Forums --> All Things Linux. There are many dedicated Linux users there to assist you.
Sorry I couldn't be of more help to you.
Luck!
~Eric