I have next question. Autor write that the file http://downloads.nitdroid.com/e-yes/gingerbread.tar.bz2 have to be save in home/user/MyDocs. If I download a file I save it to N900/Documents by the computer. So If I after type to X term frase

cd /home/user/MyDocs
bzip2 -d gingerbread.tar.bz2

it writes

bzip2: Can't open input file gingerbread.tar.bz2: No such file or directory.

How to save a file to /home/user/MyDocs. Or what i have to do? I dont understand, thx.