No, I didn't send any extra envelope.
My attorney send my 485 package to VSC in september, 2001 but I got it back from Nebraska service center and with a letter stated that it isn't in your jurisdiction.
I was depressed and I called INS vermont and spoke with the officer that what happened regarding my package. She asked me to send the package back to us (in Vermont) with letter stating what happened to your application and where did you send it originally and from did you get the package back (nebraska service center).
Then officer said we will process your forms quickly and we will mail you a received date notice within 2 days. So I got the receipt notice with in 7 business days after fed ex the application form to INS.
Thanks,