I hear ya...its odd...worked fine with 4.0.3...just getting the error in 4.0.4 PL1 :)

hmmm working great for me on 4.0.4 PL1 (can see it here - http://forums.texas-fbody.org/portal.php?pageid=tfba)
I would try removing it and reinstalling

Oh it works fine...just get that error when saving the custom BB code in admincp :)

lol oh ok, i missed that part

Odd. I just tried it on 4.0.4PL1 and it works fine. Not sure what to tell you on that one.

I also get the same error in 4.0.4 PL1 - it is the param that is causing it

I see it now on my test install of vb4...
It's perfectly safe to ignore this error and hit continue, I imagine it would happen anytime the {param} is in an http statement, I don't know if this would qualify as another 'bug' or just a poorly thought out 'feature' of vb4.

I like it very much, but can you please help me to make a little change?

when I click on the "A" (destination) it will display the address but no picture. Sometimes the location has a picture, and I would like to display it.

for example, if you put some address in the map.google.com, like the following
Redmond City Hall
15670 Northeast 85th Street
Redmond, WA 98052-3584

you will see a picture, but with your BB code, it will not show the picture :-(

Sure enough. Good catch. Yeah, that's not a problem with this but with the way vBulletin is validating the HTML.

Seems to be working fine for me. I just typed "Redmond City Hall 98052" within the map tags.