Write some Software -- 3

I need a custom form for my "Publish Event" page. Under Events manager, WordPress plugin. I want: - allow two images upload (1 cover, 1 thumbnail) forcing the thumbnail to be size (60,60) and the cover (700,250) - Add address (I have not allowed the users to create their own location) - Force (through the button function) a choice between two categories - Force (through the drop down list) a choice of only one sub-category The form should have its own CSS so I can customise the display.