Conference registration forms are available here.

Rates for registration are as follows:
$50 for OK-ACRL members (paid 2008 membership dues in ACRL or OK-ACRL)
$65 for non-members
$20 for students

A note about membership: national ACRL members are automatically members of OK-ACRL.  If you are not a national ACRL member, OK-ACRL membership dues are $15, valid for a calendar year, January 1 through December 31.