When you download XS++, You will have a folder files_to_upload.
If not, Create folders with the foll names.
Create files_to_upload\tpa\system\multimedia\mp\skin
All the above are folders.
You have to keep all the downloaded skin folders in the skin folder.
You have to remove your sim and switch off your mobile.
Start XS++.
Press Connect.
Connect ur USB to the phone keeping the C Button pressed.
Your phone will be connected to XS++.
Press FSX.
Click Start FSX.
All the skins in the skin folders gets uploaded to your mobile.
Once done, Unplug the phone, Insert SIM and start your phone and start changing the Skins.
Cool walkman skins.
Any queries shoot out.