1) Poster is auto-sized based on the width the column it is in.  Modification from 40% to 30% (change to whatever you want):
	<column valign="top" halign="center" width="30%">
	 <section>
	  <border shape="none"/>
	  <row>
	   <column>
	    <poster autosize="true"/>
	   </column>	
	  </row> 
	  <row>
	   <column imgctrlcol="true">
	    <prevposterbtn/>
		<postercountlabel halign="center" width="50"/>
		<nextposterbtn/>
		<addposterbtn/>
	   </column>
	  </row>
	 </section>
	</column> 
2.a) Link colors are controlled by the (missing) LINKDEF statement:
  <labelfont><bold></bold></labelfont>
  <fieldfont><size>10</size></fieldfont>
  <linkdefs>
   <linkcolor_record>$ff0000</linkcolor_record>
   <linkcolor_visrecord>$00b000</linkcolor_visrecord>
  </linkdefs>
2.b) Bolding doesn't seem to work, so use a bold font for the 'human' categories:
            <human category="2"><font><name>arial bold</name></font></human>
Skin attached, change as you wish.  Be sure to put the skin into the skins->movie directory.  You'll need to restart PVD (if it's running) so it can pick up the new skin.