Im going through and adding my custom images for my forum member search and profiles. on the front page you have the recent topics block for newBB bottom row has a link "visit forum". I tracked down the file
blocks.php in modules/newbb/language/english/
now how do I convert the text to an image
define("_MB_NEWBB_VSTFRMS"," Visit Forums");
to
define("_MB_NEWBB_VSTFRMS","IMG HERE");

and will this be the only file I need to edit?

thanks for any help