Auto Saving Macro Based on Selected Date

Hello,


I am new to VBA programming and was hoping to rely on the wider programming community's expertise for help. I am trying to create a macro that will function to save the active workbook based on a date picker program that the user selects. So if the user selects the date August 26, 2013, the macro will save the program as Scheduling_Aug26_2013.xlsx. However, if the file already exists in the predefined folder, I would like the macro to simply open that file. I have attached the file I am currently working with. Any advice would be greatly appreciated.