maybe you should do the navigation thing in the css file, little easier to undo.
put something like
.rsg2-pageNav
{ display:none; }
Didn't realize you wanted the title above the inline display gone. Thats in display.class too, around line 274
in the showDisplayImage() function. Remove the line that has
<td><h2 class='rsg2_display_name' align="center"><?php echo htmlspecialchars(stripslashes($item->title), ENT_QUOTES); ?></h2></td>
Remove the whole row if want.