All text changes in our scripts can be done via translation feature, so example:
You should translate this via administration for your language:
Admin->Settings->Languages->Translate files for wanted language->frontend_template_lang.php->translate missing fields
Example video: http://geniuscript.com/support-videos/change-text.mp4
And more info: http://iwinter.com.hr/support/?p=156
Also possible to change in files:
Files related:
templates\selio\custom_template.php
templates\selio\footers\alternative.php
templates\selio\footers\default.php
Example: