i have gotten the confirmation email. do i still need to send the 1040 and PA 40 forms?

If you e-filed your tax returns, you should NOT mail a copy of your 1040 or your PA 40.  

dear sir:

i prefer to mail a paper file. so i need ti sent federal 1040 and PA40.  am i right?

so, i prefer mail paper fotm, i shall send 1040 and PA40 to the corresponding gov. office. am i right?

Yes, that is correct. You need to send Form 1040 and supporting forms to the IRS, and state tax return separately to your state tax board.