can the usage of xsl predicates solve my problem?

Hi All,

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="checking.xsl"?>
<pub>
<Def serviceTemplateName="Siebel" serviceName="SiebelGetCampusCode" serviceVersion="1.0">
<Value type="Reference" deploymentGroup="Siebel" name="QueueName">OracleQueue</Value>
<Value type="Reference" deploymentGroup="Siebel" name="SP_dbPool">dbPool_Siebel</Value>
<Value type="Concrete" name="Executable">XXXXXXXXXX</Value>
<Value type="Concrete" name="PP_CLASSPATH">XXXXXXXX</Value>
<Value type="Concrete" name="SP_procCatalog">XXXXX</Value>
<Value type="Concrete" name="SP_procName">XXXXXXXX</Value>
<Value type="Concrete" name="SP_procSchema">XXXXXX</Value>
</Def>
<Environment name="PROD">
<DeploymentGroup name="Siebel">
<Deployment name="Siebel_PROD">
<Reference name="OracleQueue">AIA</Reference>
<Reference name="dbPool_Siebel">Siebel</Reference>
</Deployment>
</DeploymentGroup>
</Environment>
</pub>

my requirement is like this :

Under pub/Def, i have "Value " nodes whose "type" attribute is either Concrete or Reference.
i need to consider only those nodes whose "type " attribute is "reference" and i shud get the node value for these nodes.

each of these node values exists as "name" attributes under Environment/DeploymentGroup/Deployment/Reference. i shud detect this node and retreive its node value.

the relationship i am trying to arrive at is something like this:
SP_dbPool: Siebel
QueueName: AIA

can somebody help me on this?

thnks,
subi..