Resolving Ivy dependencies in several plugins

When configuring Nutch 1.5-SNAPSHOT in Eclipse, I noticed that any plugins requiring additional libraries OVER AND ABOVE the ones specified in NUTCH_HOME/ivy/ivy.xml cannot resolve the dependencies. In specific the classes are

- FeedParser <dependency org="net.java.dev.rome" name="rome" rev="1.0.0" conf="*->master"/>
- URLAutomationFilter - <dependency org="dk.brics" name="automaton" rev="???"/>
- SWFParser <dependency org="com.google.gwt" name="gwt-incubator" rev="2.0.1"/>
- HTMLParser   <dependency org="net.sourceforge.nekohtml" name="nekohtml" rev="1.9.15"/> 

Further to this, I cannot locate the dk.brics dependency!

Finally, the plugin/ivy.xml files for the above plugins cannot be parsed corectly due to the ${nutch.root} vairable.