How to take cenvat credit in case of excise when nil return

I am Filing a ER-1 Excise return of a  manufacturing company for the month of Oct 2013.

For October nothing is manufactured and cleared however some packing material etc are purchased now i want to show the input credit taken for the same in the month of October 13 in ER1 online return.

1)Problem is when i m checking nil return i m not able to go to input credit details page.

2)since nothing is manufactured i can not fill the clearence detail since it need CEST number and other details.

-can i check nil return without filling anything even input credit taken in Oct month or will take the input credit in Nov moth of Return. 

- can i take input credit in Nov 13 of any input which is received in Oct 13. since nothing is manufactured?