Recently I submitted a paper to an ACM Conference. When I was reviewing the final draft I noticed that the fee value in the copyright block was incorrect. For example, in the block below the fee is automatically set to $5.00 but the Conference I’m submitting to has a fee of $10.00.

Permission to make digital or hard copies of all or part of this work for
personal or classroom use is granted without fee provided that copies are
not made or distributed for profit or commercial advantage and that copies
bear this notice and the full citation on the first page. To copy otherwise, to
republish, to post on servers or to redistribute to lists, requires prior specific
permission and/or a fee.

ICIMCS’11, August 5-7, 2011, Chengdu, Sichuan, China
Copyright 2011 ACM 978-1-4503-0918-9/11/08 ...$5.00.

It looks like this value is hard coded into the sig-alternate.cls file. Just go in and modify it like so:

globalcopyrightetc{Copyright thecopyrtyr ACM theacmcopyr ...$10.00}