Ok, the screen shots makes things clear now. I thought you were asking to change the fields title in the admin not on the template. The template has a different method.
See this FAQ first. Here’s the list of options available to Excerpt Plus:
str_select='Select Category' str_select_all='Show All Categories' str_image='No Photo Available' str_read_more='Read More' str_bio_head='Biography' str_note_head='Notes' str_contact='Contact' str_home_addr='Home' str_work_addr='Work' str_school_addr='School' str_other_addr='Other' str_home_phone='Home Phone' str_home_fax='Home Fax' str_cell_phone='Cell Phone' str_work_phone='Work Phone' str_work_fax='Work Fax' str_personal_email='Personal' str_work_email='Work'
Oh, the correct text domain is
Connections; notice the capitalization. It makes a difference.
That should fix things for you.