Im having trouble uploading my picture to any site, when i look for it when choosing a file, its supposed to be in desktop but its not. when im on desktop without searching anything, its there... any help?

Did you save it as the right file?

If animated it's .gif
If normal .jpg , .jpeg , or .pdn

animated?

did i understand right
when you try to get a pic from the i-net and you want to save it on your pc
its not there??

No, when i make a pic using paint.net, i save it to deskop, i go to desktop, its there, then i want to upload lets say to photobucket, so i upload images, look for the pic, but its not there,,,

hmm
maybe its wrong format

Late reaction, but in paint.net you must flatten the file if you have used multiple layers.

Use CTTRL+SHIFT+F to flatten, if it doesn't help, then I don't know.

try to save it as png,gif or jpeg and try to upload it again to photobucket