XML quiz problem

Im creating a Flash quiz using external XML data.
For example, 5 items and the user has to select the correct ones.
The answer is inside the XML, and looks like this:

<respcondition id = "Correct">
	<condition>
		<varequal>A</varequal>
		<not>
			<varequal>B</varequal>
		</not>
		<not>
			<varequal>C</varequal>
		</not>
		<varequal>D</varequal>
		<varequal>E</varequal>
	</condition>
	<feedback id = "Correct"/>
</respcondition>
<respcondition id = "Incorrect">
	<condition>
		<not>
			<and>
				<varequal>A</varequal>
				<not>
					<varequal>B</varequal>
				</not>
				<not>
					<varequal>C</varequal>
				</not>
				<varequal>D</varequal>
				<varequal>E</varequal>
			</and>
		</not>
	</condition>
	<feedback id = "Incorrect"/>
</respcondition>

The problem is: how can i translate the condition node structure into an expression that Flash will be able to read?