Originally Posted by shazosbourne

Well I am not great with xterm but I think if you create a new image to your liking called lockslider.png and put it in MyDocs/myfolder then you would just need to

cp /home/user/MyDocs/myfolder/lockslider.png /usr/share/themes/alpha/backgrounds

In all seriousness, download and install Winscp connect to your n900 using that. Assuming you have a wireless network to use. So much easier if you want to go changing icons and backgrounds etc.
I might make a youtube video on how to do it as I am surprised at how many people don't use it.