If you're looking for help, you're in the right place!!! That's the name of the game around here.
First, I think there's a pretty clear consesus that simply changing the acronym your group uses has little to do with any real or lasting change. Some folks tout the virtues of PTA and the supposed support structure in place but other's feel that PTA doesn't help much for their real, day to day struggles. PTO is a more general acronym used to cover parent groups outside of the PTA realm. Even a PTG can become a PTO Today Plus member and benefit from the membership privileges as well as the tons of free stuff here on the site!
It's great that you have bylaws. Even the best ones, though, can have gray areas. Many groups have a standard clause in their bylaws to refer to Robert's Rules of Order whenever a specific situation isn't covered by the bylaws. You can find helpful references on the Tools page here or you can buy revised, abridged and full fledged versions at most book stores or learn more at
www.rulesonline.com
.
I'd suggest that your team establish a Bylaws Review Committee. This committee should include capable parents and staff members who are not currently board members. Their purpose should be to review the existing bylaws, compare them to other solid examples, to Robert's Rules and to the needs of your group, then propose changes or ammendments. The proposed revisions can be presented to the voting members who can line item approve/deny each change or approve/deny the entire revised document. This is a 60 - 90 day process but is well worth the effort. Most groups routinely go through this process every two to three years anyway just to make sure they are keeping up with current trends and needs of the community they're serving.