Module development and code questions

I've submitted a patch to the inline.module, and the question was raised as to whether others find the proposed feature useful. So I'm asking for your comments.

http://drupal.org/node/61547

Is there a way to create a Password Field for my User Profile fields, I have the need to gather passwords from a user, and I don't lke them being displayed on the screen. I could not find anything on the site that referenced this specifically.

Hi, I have a form grabbing some data (membership transactions) from a database table in a Drupal 5 module I'm writing.

I can insert new records in my table with no problem but have some issues when just updating.

Most of the fields in the form can be changed, I have a select element to choose the user linked to the transaction, uid.

If the uid field is changed in the form then a few more SQL queries are run, queries I wouldn't want to run if the uid was not changed.

My question is: How to remember original values in form fields?

I would like to alter the following code in modelu private

In the event module when I go back to previous months and click on an event, the calendar returns to actual month.
I want the calendar to continue to show the month of the event I clicked. Is it possible?

Thanks in advance.

I have a list of nodes that can be sorted with the Views module filters. The filter list is displayed as a multiple select scrollable menu. How do I change this menu to a drop-down? Thank you!