I believe the variables are stored as
$file
$file_name
$file_size
$file_type
not in an array, if memory serves right. Replace $file with whatever variable you're using.
Then, use this
CODE
copy("$file", "/images/$file_name");
Change file you your varialbe's name again. The first argument is the file identifier, and the second is where it's copied to.
You don't
have to check for file types, size, ect, but it's useful for limiting stuff.