Having difficulty in installing Android on Virtualbox

[johnha169]

Hey all

I just follow step by step from this http://www.keyables.com/2011/12/try-android-x86-40-on-virtualbox.html , but unfortunately, in step 12, I chose ext3 as instruction shown and when I press ok, it had an error window saying "cannot mount /dev/sda1 and simply it stopped me proceeding, so can anyone fix this problem for me please, thank you. Oh, I am using window xp at the moment.

Regards
john

[johnha169]

in step 12, if I select Fat32, it stopped me from step 14, after the installation from step 14, it should be a window like step 15, but mine is  fail to create data mg, so what should I do, thank you