Exactly. Questions like yours keep getting posted, but there really is no absolute answer.
Besides, it's not difficult at all to test several bots, especially if they are as similar as IvP and EPB. They even use the same old PB 2.5 waypoint format.
You won't have more to do than double-click the installation file, install into whatever directory IvP uses (cstrike possibly), and there you go.
Then, if you want to test EPB, just remove/rename the bot directory that IvP created, double-click the EPB installer, and that's it.
Maybe you'll need to invest 5-10 minutes on each bot's readme, but it really isn't rocket science.
