Asp.net Events Calendar

Need to have a very simple ASP.NET Events Calendar script modified. The script currently woks as basically a Master Detial page. The Calendar acts as a Master Table when cliced details show up in a grid view. Currently have the script working with a Access DB. Need the script to work with MS SQL 2005 DB and also to have the events when needed span multiple days. So a start and end date which is reflected in the Calendar. Contact me for more details.