Update table from a userform with controls

Hi all,
I have 2 tables to keep records of in and out mailing of my department. In these tables some of the columns have drop down lists. Since the excel built-in userform don't have the drop downs I want a custom userform to update the tables with controls like update, close, search/find buttons. I tried to make one but failed to link with the cells. I don't know to write codes for this so if any one could do this that would be much appreciated.
File attached.

Thanks a lot.....
Mohan