KMail can't do Hotmail.
If your D drive isn't in /mnt, you need to add it to it. Edit /etc/fstab and add this:
/dev/hdx /mnt/windows vfat defaults 0 2
Replace X with the partition letter assignment.
Cron is a program scheduler. It's kinda hard to figure out though. Just use XMMS and get the
xmms-alarm plugin. It'll start playing music at the time you tell it to.
Good luck.