(09-14-2011 11:07 PM)Skatman Wrote: The problem is that many MANY people doesn't even put thread image.
Then make it a required field.
(09-14-2011 11:07 PM)Skatman Wrote: I want to make automatically thumbnail the first available image in the thread
You'd need a special plugin to do anything like that from within a post message.
(09-14-2011 11:07 PM)Skatman Wrote: but not uploaded in the server (the image's URL will link in the host that's uploaded and in the right size).
Why don't you want it uploaded to your own server?
Do you really lack the space/bandwidth to store some very small xxxKB images?
(09-14-2011 11:07 PM)Skatman Wrote: and in the image's field I want to appear resized, something like fit to screen (width="x" height="x" can help in this)
You mean the user manually specifies a width and height for the image?
Otherwise, where do the dimensions come from?
If it's never stored on the server, where do you get the thumbnail from?