Read xml file

[myFortress3]

I am new to ant and currently I am trying to read a value from an xml file that stores the build information for mulltiple projects. I am trying to get the build date for project "B" and store that value in a variable. As simple as it may seem I cannot access the value using property tag along with xmlproerty. I need to indicate to ANT that it needs to read the second BuildInfo node but I don't know how to do so.

<xmlproperty file="${ServerConfigFolder}\${FileName}" semanticAttributes="true" collapseAttributes="true"/>
<property name="lastBuildDate" value="${onRequestStart.configuration.buildInfo.buildDate}" />


Please help, it is driving me crazy. The format of the xml file is as follows.

<onRequestStart xmlns="

http://www.w3.org/1999/xhtml"

id="application_wynch">
<configuration>
<buildInfo Project="A">
<build>21</build>
<buildDate>20091203</buildDate>
<version>1</version>
</buildInfo>
<buildInfo Project="B">
<build>278</build>
<buildDate>20091208</buildDate>
<version>1</version>
</buildInfo>
<buildInfo Project="C">
<build>2</build>
<buildDate>20091027</buildDate>
<version>1</version>
</buildInfo>
</configuration>
</onRequestStart>