The VOTS meeting runs in conjunction with the ACVO conference but is not the same conference. These two meetings are hosted by separate organizations and have separate registrations for attendance. The only event which 'overlaps' is the Friday evening dinner, which all are welcome to attend.
The ACVO does have a registration category for technicians (on the ACVO registration form) to attend the ACVO meeting but the ACVO conference is targeted toward DVMs. Typically technicians benefit more by attending the VOTS meeting instead of the ACVO conference.
VOTS is currently in the process of transitioning to AVOT. To learn more about AVOT, meeting registration and dues, visit their website at: www.avot-vts.org