converting from name - id and PHP not seeing it?

I jsut finished converting my pages to be W3C compliant... One of the recuring 'errors' I had was my form elements were all using the 'name' atrtribute... apparently, this is bad, and I was suggested to switch them ti use the 'id' attribute... all good, I did that, but for some reason, when I post that info to another page, it's not carried over... name works fine, id does not... Am I being a tool? What am I supposed to use...? I use $_POST[variable] in my code..., so I tried just $variable... that failed too...? Thoughts? Tris... ********************************************************************* The information contained in this e-mail message is intended only for the personal and confidential use of the recipient(s) named above. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this document in error and that any review, dissemination, distribution, or copying of this message is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail, and delete the original message. ***********************************************************************