4
Another way is (I did it with: 2.0.73 and 2.0.93 painless) is to download the whole XOOPS version 2.0.1.3 and upload it (with the exception of the mainfile and modules!!) to your server. Then upgrade your admin=>modules=>system and your done.
You don't have to be scared of Database changes since there are none.
Grtz., Shine