Hi. Untested, but perhaps try the following.
In robot_functions.php add the following to the phpdigRewriteUrl function:
PHP Code:
$eval = str_replace(" ","%20",$eval);
Also in robot_functions.php add the following to the phpdigUpdSpiderRow function:
PHP Code:
$path = str_replace(" ","%20",$path);
$file = str_replace(" ","%20",$file);