Nokia 3600 slide

[littleshirl]

Hi, I have the above mobile phone and when I put my pictures on my pc from it, it deletes everything from my phone even including the photo I have as wallpaper so I am left with a blank space. Is there anyway to prevent this, I can't find anything in the user's guide. I have the Nokia pc suite on my computer but don't like it, can't make head nor tail of it to be truthful :o( TIA