****EDIT**** After re-reading your post I am wondering- did you try and use the rar file that Tony provided? Because I got those errors also trying to use that file. I had to re-download the files from Drellisdee here...
http://www.mediafire.com/?sharekey=0...ada8390b259c5f
After you download this file, copy and paste it- go to Computer\C: and paste it in that folder. Unzip. Run "Erviuskitchen" as Administrator and I then did the following:
I had absolutely no idea what I was doing. But I will tell you the steps I went through.
Opened Ervius Kitchen (from the Dr. -the rar file from Tony didn't work for me.)
clicked "Load ROM" uper left corner.
Selected "21874_Manilla_2.0.erv
Deselected the packages I did not want (Manilla_xxxxx, Opera_Browser, VZW_VVM)
Clicked "Create ROM"
It did its thing (took several minutes).
It prompted me to plug in my phone.
Voila- flashed my own ROM. No Manilla and no VZWTrash.
I haven't learned to add my own stuff yet. When I do I will try and post a little "how to" if someone with the real knowledge doesn't do it first (hopefully they will).