Four questions:

1. Is there a way to strict a "File upload" field for only .jpg files? And than set to automatically resize a picture to say 100x100px?

2. Is there a way to customize the look of "Summary display" in terms of column width etc?

3. Is there a way to automatically remove the user submitted entry after a certain period or send an email that will contain removal code?

4. How to add a search form to the top of the form that will search through entries?

Thank you.