[Networker] Location shows unknown in recovery of exchange

 we are trying to do a msexchange recovery , but the location field shows 
UNKNOWN.  According to the build in help the location should give the volume 
the saveset is located on.
 
I have tried to recover with version the exchange module 4.1(the version we use 
for backup of the exchange data) and with 5.0.
 
When using the "show versions" I can see all dates and times and the various 
savesetst (size) but the location remains UNKNOWN.
 
It seems that this is blocking our recovery attempt. 
 
As my exchange admin has never before worked with networker they turned to me 
for advice. 
My knowledge of this module is extremely limited.
 
can anybody offer any assistance?
 
 
CONTEXT:
 
networker Version: NetWorker nw_7_3_2_jumbo.Build.386 Network Edition/35
On windows 2003
exchange is on a cluster of 2 win 2003 servers
 
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I tryed the following query to locate the data directly and that does find the 
data sets and the volumes:
#! /bin/sh

Q="savetime > 1 week ago"
R="nsavetime,savetime,totalsize,client,volume,name,ssid,cloneid,ssflags,clflags"
 
mminfo -s mbubckup -c mbuexc \
-q"$Q" -r"$R" -xc, |
sort -n |
more

savetime,date-time,total,client,volume,name,ssid,clone-id,ssflags,clone-flags
1216090808,07/15/2008,32684609508,mbuexc,000013,MSEXCH:IS,3917222600,1216102684,vF,
1216090808,07/15/2008,32684609508,mbuexc,000068,MSEXCH:IS,3917222600,1216090808,vF,
1216090808,07/15/2008,32684609508,mbuexc,000141,MSEXCH:IS,3917222600,1216090808,vF,
1216144804,07/15/2008,32679365640,mbuexc,000068,MSEXCH:IS,3195856428,1216144804,vF,
1216177211,07/16/2008,32684609508,mbuexc,000001,MSEXCH:IS,2826789951,1216191244,vF,
1216177211,07/16/2008,32684609508,mbuexc,000037,MSEXCH:IS,2826789951,1216177211,vF,
1216231204,07/16/2008,32700341112,mbuexc,000020,MSEXCH:IS,2088649908,1216234494,vF,
1216263619,07/17/2008,32684675052,mbuexc,000014,MSEXCH:IS,1769911758,1216276564,vF,
1216263619,07/17/2008,32684675052,mbuexc,000066,MSEXCH:IS,1769911758,1216263619,vF,
1216317604,07/17/2008,32684675052,mbuexc,000076,MSEXCH:IS,1048545525,1216317604,vF,
1216350009,07/18/2008,32689918920,mbuexc,000005,MSEXCH:IS,679479126,1216362964,vF,
1216350009,07/18/2008,32689918920,mbuexc,000101,MSEXCH:IS,679479126,1216350009,vF,
1216404003,07/18/2008,32689918920,mbuexc,000078,MSEXCH:IS,4236302968,1216404004,vF,
1216436408,07/19/2008,32684806140,mbuexc,000016,MSEXCH:IS,3850459346,1216436409,vF,
1216436408,07/19/2008,32684806140,mbuexc,000123,MSEXCH:IS,3850459346,1216449364,vF,
1216490405,07/19/2008,32679562272,mbuexc,000021,MSEXCH:IS,3129093123,1216490405,vF,
1216522808,07/20/2008,32684806140,mbuexc,000039,MSEXCH:IS,2843912781,1216537924,vF,
1216522808,07/20/2008,32684806140,mbuexc,000072,MSEXCH:IS,2843912781,1216522808,vF,
1216522808,07/20/2008,32684806140,mbuexc,000090,MSEXCH:IS,2843912781,1216522808,vF,
1216576805,07/20/2008,32684806140,mbuexc,000072,MSEXCH:IS,2122546700,1216576805,vF,
1216609208,07/21/2008,32684806140,mbuexc,000032,MSEXCH:IS,1837366231,1216609208,vF,
1216609208,07/21/2008,32684806140,mbuexc,000109,MSEXCH:IS,1837366231,1216622164,vF,
1216663204,07/21/2008,32679562272,mbuexc,000008,MSEXCH:IS,8703791,1216663205,vF,

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Maarten Boot
System Engineer
MBU d.o.o.
10000 Zagreb, Andrije Žaje 61
tel: +385 (0)1 4803 684
mob: +385 (0)99 2119 600
Maarten.Boot AT mbu DOT hr
www.mbu.hr