ok
You should not have any problems scanning in 97 with your 500...
This is what I would do...l would start fresh with a new flash...
get rid of all the old stuff that way..
then reload your new satellite.xml file
after that then set up your lnb and make sure you are using the correct settings otherwise you will have issues..make sure you go through each page of the set up and and make sure to name 97 as Satellite 1 in your setup
By dumping your old flash it should clear out the old stuff and with a fresh start you shouldn't have any troubles..
Make sure you put the Satellite.XML file in the correct location otherwise it will do the exact same thing...it will be looking at the older version even with a re-flash.
DBedit should allow you to add or change settings on your transponders if your 500 is setup correctly...
As far as Blind Scan goes, I have never seen a need for that on a Dreambox as it scans in very well. Even if it misses a tp or channel I can always go into DBEdit and add the Channel..
You must use Channel Master along with DBEdit to make changes in your satellite.xml files..
You can't just do it with DBedit...alone..
Download your channel list from Dreambox and save it to a file..
Open it with DBedit and use the flag to keep all channels. Then save the file again and use Channel Master to import it and then ADD your channels. Save the channels using the Set Flag and then export it back.
Reload it using DBedit and you are good to go...Say for example you wanted to ADD the CW channels you would download the file to DBEdit and then save it to a file..Import it to Channel Master and then make your changes and add the CW Channels and information..pid and stuff..then export it in Dreambox format...then Go back to DBedit open the file and then send it back to Dreambox. You can use the reload command along with DCC and it should reload all your new channels. Drembox is not plug and play it will require some learning and trail and error...I find using the Reload Command Insures the new changes takes place..
Very simple once you get the hang of it....You can do all sorts of adds and changes with a Dreambox that you can not do with any other receiver...It might sound hard but really its very simple!

I might add I think Dreamboxes are by far the best FTA receiver on the market if they are setup correctly. They are still by far ahead of anything else out there. What they lack they make up for in other ways.
Simple...