You can change the size of a wallpaper that you have by simply doing the following :
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1) Open one of the following programmes
( Adobe Photoshop - PaintShop )
2) File > New > custom size ( 800 x 600 )
3) Copy the picture from ACDsee and paste it as a new layer
4) Save the picture on your computer
And Traa !! You have a wallpaper in the size of ur computer's monitor :P :>
I have the 2nd one only i couldnt do the first one but i promise i'll do it later ok ?
im sorry it has a big size i can only send it to you maybe Via Email . I couldnt even upload it on my website :> :>