su - user
pwd
(should show /home/user)
ls -l
(should show MyDocs among others)
mv MyDocs/.documents/gnokii .. and so on.
Note: MyDocs is really /home/user/MyDocs and there is no "." in front of MyDocs
Note2: If the above 'mv' doesn't work, possibly because /var/lib/install isn't writeable by 'user' (I don't know as I don't have that directory) then you must be root not user (i.e. no 'su - user', and you must have used gainroot before), and modify the mv command to 'mv /home/user/MyDocs/.documents ...' and so on (it's best to use tab completion here, as someone else mentioned)