I guess you will be able to select the bot launcher that satisfies your needs. There are now several front-ends with Gladiator bot support available to make your life easy. Bot Johnny is an alround bot launcher with Gladiator bot support. And The Gladiator Generator is available, a launcher specially for the Gladiator bot. This mod enables you to play Quake2 with multiple players on one computer.
Some new information related to bot character editing is now available on the features page.
You will also find an overview of the files that make up a bot character. The new v0.92 game source code is now available. Click here for a quick download. A list with all the game source changes from v0.91 to v0.92 can be found in the readme.txt included with the game source. Lots of new features, tweaks and fixes.