TOPIC: registrations and exporting

I have a number of questions, and my previous question about a slash was never answered (either in the forum or in a support ticket), so I don't know how well I'll do with these, but I have to try.....

I'm using DT Register version 2.7.5c, Joomla 1.5.20. My site is ezgsa.com, and I use DTR for our seminars.

A) At the end of the registration process, there is an option to be redirected back to the website, but it doesn’t redirect. Any ideas why?

For group registrations, we require information for all attendees, plus billing info, then when one gets to Paypal, it must all be entered again…is there a way to make this less cumbersome?

C) In the CSV Export utility, is there a way to have the events listed either by date or alphabetically?