3
Go to your:
modules/system/language/english
Find the blocks.php and open it in your text editor. You can change what you wanted here. For example:
define("_MB_SYSTEM_VACNT","View Account");
define("_MB_SYSTEM_EACNT","Edit Account");
change to
define("_MB_SYSTEM_VACNT"," Your Account");
define("_MB_SYSTEM_EACNT","Modify Your Account");
Save the changes. Go to your site, refresh the page if necessary and the new name should show up.
Hope this helps!
Quest