Validations on InfoPath2007?

I did two projects on Infopath2007 . I got the chance to work on high level info path object model and have played around one year on infopath surface.
I would like to post one of the simple screenshot which explain the validation of the form.

After reviewing related docs Supervisor group should change task status based upon errors.
In this screen shot based on Minor and Major errors(s) user should select the proper approval choice (COMPLETED, COVERWRAP, INVALIDXEMID, REJECTED, ALREADYAPPROVED, AWC, NOTSTARTED, FAILED and SUBMITTED etc).
These three controls would depend upon each other. I implemented rules to select proper options based upon severity else show error message on the form.

How to increase the bandwidth of the Web-enabled forms?

Ans: Set Form Session State to Form view
Goto Central Administration > Application Management > Configure InfoPath Forms Services at the bottom sharepoint given the follwoing option

How to ensure the data from web services is accessible into InfoPath 2007 Browser Forms

I am searching that how to enable the web service proxy for user forms. I got the idea once i red the following post.
http://blogs.msdn.com/infopath/archive/2006/10/02/Data-Connections-in-Browser-Forms.aspx

Info Path Interview Questions

Some Info Path Interview Questions writen By Wong-A-Ton
She is InfoPath MVP.
http://www.bizsupportonline.net/infopath2007/infopath-2007-frequently-asked-questions-faq.htm