class.upload.php is a powerful and mature PHP class to manage uploaded files, and manipulate images in many ways. The script is available under a GPL license.
No, both functions do not trigger any image processing. Names do get changed, but there's no GD image processing.
For Flash, i've used v0.25 with a user-submitted add-on i've found on this forum post.
This add-on should correct for the fact that Flash can only send octet-stream mime-types. v0.24 does not work with flash upload, it can't read the file. V0.25 does work with Flash upload however, but it does not resize the image. I thought that that may be due to incorrect mime-types, so i tried that add-on.
For Flash, i've used v0.25 with a user-submitted add-on i've found on this forum post.
This add-on should correct for the fact that Flash can only send octet-stream mime-types. v0.24 does not work with flash upload, it can't read the file. V0.25 does work with Flash upload however, but it does not resize the image. I thought that that may be due to incorrect mime-types, so i tried that add-on.
I use this flash uploader.