Capturing Max/Min with Tuning Center?

I've tried to follow this:
http://www.xsimulator.net/tuning-centre/

I have installed a patch, I have the blue Game Running header in Game Manager.
I open SimTools, I select the game. I click on Capture Max Min, and it turns all the Max and Min boxes black text and makes them editable, but it's not capturing any data from the game.

Are there other prerequisites for capturing Max Min from a game that I'm overlooking?

what game are you testing on?
did you install the game plugin first?
did you put some axis assignments in?

Ok capturing the min max.
1. Start game and make sure everything is connected
2.Start Tuning centre
3.Click Capture Max Min.
4.Click Reset to reset or the values to 0 or just change the one you want to tune to 0.
5.Now go back to game, drive/fly for a bit noticing values, beware you don't want to hit walls or crash as it will throw a massive value that you don't want.
6. Once happy with the values , click Save New Setting.

Ok can be done like this or by manually entering the values and press Save New Settings.

I've tried it on two games, one is the Live For Speed demo, the other is my own game that yobuddy has helped to make a plugin for, but he says I should set up a default Max Min profile to go with the plugin so I wanted to understand how that works.

I had tried a couple axis assignments. But I thought the Tuning Center is working with the values input from the game so it wouldn't matter what it's outputting to the simulator.

I have another test program that just listens to port 4123 and that works successfully, so I don't think it's an issue with the UDP messaging.

I've followed the steps eaorobbie lists but once I get to step 5 & 6, the values are all still 0.

And like I said, I've tried it in my game and in Live For Speed which is why I think the problem is with I don't understand how to do this, rather than with yobuddy's plugin.

And I will provide all the instructions on how I did it too for you so any other game you may bring in , you will know what to do.

All right. You've been very helpful, and I got it to work.

What seems to have fixed it was setting up the Interface Settings, which is one of the things @eaorobbie mentioned in a direct conversation. I had originally ignored Interface Settings because I thought I should get the input from the game working before I concern myself with the output to the platform, but it does seem to have made the difference.

Still would love to see it in action.

It's a goofy game I made where you're a cake. This is a download for the game:
http://gamejolt.com/games/party-business/download-distribution/24723/

And the plugin should be attached to this post.

I did it 90% as a proof-of-concept. Now that I've done it once I know what I need to do it again with other games.

Thanks I will give it a whirl, cheers for sharing this with us all.