Hi,
Which version of DS 7 are you using?
I am using 7.6 and on my NS i have placed the pwl file here:
\\localhost\NSCap\bin\Deployment\BDC\bootwiz\oem\DS\winpe\x64\Base
From there it replicates to the site server. So in my case I can find the same file on the site server under the following path:
%program files%\Altiris\Altiris Agent\Package Delivery\{374E1C49-4F58-4F5C-8D51-07A30F0D44AD}\cache\bootwiz\oem\DS\winpe\x64\Base
There you see the file with the same time stamp as on the ns server than you know it has been replaced. The package itself in the package server is called BDC. Check if it has been changed recently.
If the file has the correct time stamp then I assume the "recreate" job has not run on the site server.
You can try in that case to run through this article. This explains how to run the bootwiz task on a single site server. https://support.symantec.com/en_US/article.HOWTO93837.html
If this does not help you might take a look at this article here https://support.symantec.com/en_US/article.TECH211409.html
Stefan