New User - Two Issues that be prevented

[Sameem M]

Hi Team,

I am new to Ubuntu and I am very excited to learn more about it. I just
finished installing it along side my Win7 OS but I am also frustrated
with small issues.

Unfortunately, I had two issues that I think could have been easily
prevented.

      * User name must be in lower case only (a simple reminder above
        the field would been great help) as I was not able to go forward
        with installation and had no idea why until I did some online
        digging. 
      * The swap area selection. There was no any warning that any files
        on that partition will be erased!) I lost my documents after I
        used it  as a swap area (I thought it will be used as memory
        dump area or something) had no idea it will erase everything....
        If there is away for me to get my files back your help would be
        very very appreciated. I lost over 1000 pictures and
        documents :(

Thank you for reading.

Hope these suggestions would be of some help.

Regards,
Sameem