The /mnt/data is a directory in my computer. You see I have a 20gb partition mounted there.
What is your partition setup look like?
windows Partition
Mandrake partition
swap partition
Mine looks like this:
hda1 /mnt/windows (FAT32)
hda2 /home (reiserfs)
hda5 / (root for Mandrake) (reiserfs)
hda6 / (root for SUSE) (reiserfs)
hda7 /mnt/data (20gb backup partition) (ext3)
hda8 swap
Do you have a partition for backup files? Is your windows partition a FAT32 or a NTFS?
Their is a graphical way and a command line way. Ill tell you a graphical way.
Click your "home" icon. konqueror will open up to your home directory. You should see your evolution directory.
Click at the top "window" then "split left&right"
on the right hand screen navigate to the place you want to out your evolution directory. If you don't have a spare partition this may be a problem. Your windows partition may not work(not at home now to try it). If its a NTFS partition it is read-only. If its a FAT32 you can write to it but you may run across some "file permission" errors.
When you have found where you want it to go. Right click the evolution file (on the left side) select "cut". Then click the right pane (where you want it to go) right click and select "paste"
now the "evolution" folder is on the right side out of your home directory. on the right side evolution folder right click and hold dragging your mouse to the left side and release. Select the "link" option. A evolution folder (with a arrow) should appear in your home directory.
For all purposes the system thinks the "evolution" folder is in your home directory, when its really where you want it. I have placed mine in my 20gb backup partition. I never format it when I do a reinstall of any system.
For the sake of argument. I could just leave the folder in my /home directory. You see if I upgrade or reinstall I never delete the partition. On first boot to a fresh install all of my personal settings sre their. But I have been trying to use the same /home directory for both Mandrake and SUSE. So far not so good I might add. A lot of fun though