[IAEP] installation problem

[roberto]

hello everyone
i am trying to install sugar-on-a-stick using the process suggested in:
http://wiki.sugarlabs.org/go/Sugar_on_a_Stick/Strawberry#Windows_Users

i use Xp currently

but when the live-usb creator tries to complete the procedure the
following error is reported:
.\tools\dd.exe if=/dev/zero of="E:\LiveOS\overlay-FEDORA-D07F-3503"
count=1902 bs=1M
rawwrite dd for windows version 0.5.
Written by John Newbigin <jn at it.swin.edu.au>
This program is covered by the GPL.  See copying.txt for details
Error writing file: 112 There is not enough space on the disk
1614+0 records in
1613+0 records out

.\tools\syslinux.exe -m -a -d syslinux E:
Reading boot sector: The parameter is incorrect.


the guide suggests at least 1 GB and i am allocating 1,9 ! on the stick

i cannot figure out the problem

thank you in advance
-- 
roberto