Modifications in events

I need 4 modifications to be made on the events mod of my website:

• change the "in 5 days" in the events browse pages to start and end dates
• there are events that repeat, like a concert that happens every friday. Is there a way to automaticaly change the date?
• I need the past events not to show anymore in browse pages(only in the past events browse page) and that they automaticaly delete after a week
• I noticed that the calendar shows only the events that start at a date, but I need that the events that stay like a week happening(like movies) appears in the calendar all the days, not only at the start date