Hi Stargazer, those instructions are for the old version of CustomUI though that only works with MoI v3.

The instructions for CustomUI.2.0.beta2 are here:
http://moi3d.com/forum/index.php?webtag=MOI&msg=6507.268

For v4 it goes in the appdata directory now and you shouldn't modify CommandBar.htm anymore for v4.

Please carefully check what version you're getting because what you show and describe all fit with the old version of CustomUI and not the one that works with v4.

- Michael