How can I use multiple cameras in Quartz Composer?

Good morning, all. This is a quartz composer question, but I can't see a quartz-composer specific forum to ask it...
As part of a school project at ACAD we are building a rig to record the output from three video cameras to build a panoramic video. I have played with Quartz Composer to do the melding of videos recorded with this setup into a single image, and it worked very well.
However, to do so live is the intention for this project as well, so we can build the composite video for recording (the timing of three different cameras is a bit awkward) as well as line up the cameras without having to do so separately.
In Quartz Composer, however, the video-in plugin only reads the camera model number, not the unique GUID as seen in the System Profiler, so three identical cameras will not be read properly... you can only choose the model number, not the specific id of the camera.
Is this a bug in Quartz Composer? Is there some top-secret plugin that is hiding somewhere that will allow you to choose the individual camera id's as seen in the system profiler? (Cameras tested have been firewire handycams streamed live, and usb cameras. identical model numbers can't be chosen as individual cameras properly)
Thanks muchly, and please shuffle this question to the proper forum as necessary.

I am working on a project where I need the same functionality. But even though I'm using different webcams, and can clearly select them in the menu, still only one camera works at a time. Even if I run two separate patches, with two different camera inputs, only one of them works.
If you find any solution to this problem, I would really appreciate if you could share it.

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I using group function in my update statement.. and i need to update more rows so i need to use multiple row
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update dail_att set outtime in (select max(r2.ptime) from temp_att where empcode=r2.enpno and
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Hai Man
Thanks for ur response Let me clear what i need
First step Fetch the records as text file and stores into table T1
and the next step is i have seperated the text using substring and stores in different columns of a table
There are two shifts 0815 to 1645 and 1200 and 2000
Here I rep IN and O rep OUT
Empno date time inout
001 01-01-10 0815 I
002 01-01-10 0815 I
003 01-01-10 0818 I
001 01-01-10 1100 0
001 01-01-10 1130 I
002 01-01-10 1145 0
002 01-01-10 1215 I
004 01-01-10 1200 I
005 01-01-10 1215 I
004 01-01-10 1315 O
004 01-01-10 1345 I
001 01-01-10 1645 0
002 01-01-10 1715 0
003 01-01-10 1718 0
004 01-01-10 2010 0
005 01-01-10 2015 0
This is my T1 table i have taken data from text file and stored in this table from this table i need to move data to another table T2
T2 contains like this
Empno Intime Intrin Introut Outtime Date
001 0815 1100 1130 1645 01-01-10
002 0815 1145 1215 1715 01-01-10
003 0818 1718 01-01-10
004 1200 1315 1345 2010 01-01-10
005 1215 2015 01-01-10
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And my coding is
declare
     emp_code varchar2(25);
in_time varchar2(25);
out_time varchar2(25);
Cursor P1 is
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From temp_att
group by REASON,ECODE,READMODE,EMPD,ENPNO,FILL,PDATE,PTIME,INOUT,CARDN,READERN
ORDER BY enpno,pdate,ptime;
begin
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declare
bar_code varchar2(25);
begin
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Attachments:
Host Computer Image or Vision Acquisition Software Installed.JPG ‏91 KB
IMAQ and dx Modules Installed on my NI cRIO 9022 hardware(No NI Vision Acquisition 2010 SP1).JPG ‏82 KB
NI Vision Acquisition Express NO Error for NI cRIO 9022.JPG ‏48 KB

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