Newbie Questions

I am converting an application to ASP and have run into several roadblocks. The application will have several clients accessing information from the server thru several ASP pages. Here are my questions:

1. Regarding events - Can I setup an event or other way to notify the clients (viewing one or more ASP pages) that data in a file has changed and cause the clients to reload/re-execute the page they are viewing? Currently, the client HTML pages refresh every x minutes; however, I am looking for a more effecient process.

2. Currently, I Secure Shell Copy files from a Solaris box to the web server. Is there a process, program, or other way using IIS/ASP/etc. to move (pull) the files from Solaris to the IIS server only when the files on the Solaris box are updated?

3. I would like to give every client the ability to change the appearance of certain pages. I am looking for a code-snippet or example that allows a user to move choices from a column (box) on the left to a column (box) on the right and reorder (top to bottom) the choices in the right-hand box. I have seen this done on several web sites, but cannot View the Source. Any snippets out there or suggestions where to look?

I appreciate the help/suggestions.