Hello all!
I need some serious help as my deadline is coming up fast!  I am trying to add functionality to the announcements module.  Additionally to the 'publish date' option, I want to add a 'publish end date' to automatically 'unpost' an announcement.  I realize I need to add an additional calendar control, modify the tables to store this date, (and probably other things), but I'm not sure where to start...
I have reviewed the manual on developing modules, and many others, but cannot put two and two together:  There are too many things to keep track of!
First off, I am developping in VS 2005, on DNN 4.3.3.  I have created a new project called news_cip, and since I am building on the announcement module, i simply copied most of the .ascx control files from DesktopModules\Announcements to my project folder DesktopModules\news_cip. 
I am able to add a new news_cip module to the portal, and the module behaves identically to the original.  I have even gone to the extent of modifying the EditAnnouncements.ascx file to include an 'endpublishdate' text field.  Yay, but what next? 

• How do I activate my endpublishdate calendar to control the text field? 
  
• How do I then update the table with the end date?  Is this done in the cmdUpdate_Click function in Editnews_cip.ascx.vb?
  
• Also, how and where will I control whether or not an announcement is posted?
  

I have many more functions that I need to add, but I hope that developing this simple addition will give me a hands-on tutorial to link together everything that I have read in the manuals!
Many thanks in advance,
Caley