Ok have run through your code and have some changes for you, bear in mind I haven't tested it so may have forgotten something - if it doesn't work let me know
Firstly I got line numbers by pasteing the raw data from yor pastebin into notepad++ so they are not the pastebin line numbers
To edit the title change <label>31323</label> on line 242 to <label>20389</label> which should be Music videos. If you're like me and want a capital "v" you could just change it to <label>Music Videos</label> or whatever you want, bearing in mind that this would now be hard coded and not change with different languages.
To seperate the list from "Latest Movies" change the List ID from 8000 to something else eg 7999. So on line 293 <control type="list" id="8000"> must be <control type="list" id="7999">
Now you'll want to be able to scroll the list so just below you'll find
<onleft>9000</onleft>
<onright>8001</onright>
<onup>8000</onup>
<ondown>8000</ondown>
Change them to
<onleft>9000</onleft> - goes back to main menu
<onright>8000</onright> - goes to latest movies
<onup>7999</onup> - goes up Music Videos
<ondown>7999</ondown> - goes down Music Videos
Line number 334 now needs to change from <visible>!Control.HasFocus(8000)</visible> to <visible>!Control.HasFocus(7999)</visible>
Also 342 from <visible>Control.HasFocus(8000)</visible> to <visible>Control.HasFocus(7999)</visible> ( note different to 334 as no ! )
By the way like your use of $ESCINFO Welldone !!
Line 85 we need to change from <onleft>9000</onleft> to <onleft>7999</onleft> because on going left from Latest movies we want to go to Music Videos not Main Menu
Now you need to edit Home.xml to tell it that on right press you want to go to Music Videos before Latest Movies so line 380 change <onright>8000</onright> to <onright>7999</onright> and also the same on line 434