Your task is:

• Setup Haiku in Virtual Machine (Virtual Box recommended) or on real hardware;
• Download standalone version of Haiku Mail application from the link below;
• Take familiar with the code and both problems description;
• Use make to build the application. Resulting executable binary you'll find in 'objects-...' directory;
• To reproduce the #7983 - open the Mail application, drop some paragraphs of text from clipboard and press Alt-F - the dialog should appear - put some text to search - the Find button is not become enable. You should fix this;
• To reproduce the #7982 - open Mail application drop some files on it - they will be in the list of attachment. Now press with the right mouse click - context menu should appear proposing to delete attachment. The problem is that corresponding attachment was not selected - and this may confuse user. You should improove this.