open picture up in paint
go to file > Save as> then type in the file name and where u want to save it to, then under where u type the file name, click the drop down menu and select JPEG
once u save it go to
www.imageshack.us
Click browse and select ur picture that u saved as a JPEG file
Select HOST IT!
and it will upload ur pic for free and even write the vB code for you (should look like [img] a URL adress then [/img] )
hope that helped