As the dropdown says, you need to select a field to search. In HEAD 
the first field is pre-selected for you to make this more intuitive.

when i go into the search option in IMP - i dont get a text box to 
input my search.  i see the submit and rest buttons but no text input 
box.



atttached is a screen shot of what i see.  i have tried different 
accounts and none of them seem to work.



thanks.