[eluser]Majd Taby[/eluser]
Answer #1: Ah, you found a bug ....Here's what's happening: codex takes the first element in your table, and turns it into a link to edit. However, sometimes the text is too long, and it makes your table look ugly, so if your output is too long, then codex will cut it in the middle and put ... in the middle. The problem is that it's taking html output, encoding it as a link, and truncating it.
I'll fix it soon
Answer #2: As of now, you can only make a thumbnail by resizing, i'll add more Image Manipulation options in the next release.
Answer #3: You would make your own codex_form_view.php in application/view/templates/default/