Sorry, I'm not clear understand you.
Look:
- I show you link to my docs. You entered compatibility mode for resource files, and in this case the icons loaded from the other folder (not admin), and I don't include the same icons into site folder. I docs I wrote it.
Let's try to read your icons, just as server tries
But I can access to my utils icons
www.elegimos.es/components/com_zhgooglem...ssets/utils/bike.png
The second:
- you set marker manager (you enable it im map details). It means the placemarks will show|hide depend on zoom.
I suggest you 3 steps:
1 - check icons, it can be accessed from page, ie you can display it by its URL.
May be you restrict access, and the icons don't displayed by it
2 - check whether or not you need to use marker manager by zoom, may be it is not your case to use it
3 - if you think you configure all correct, but it doesn't displayed yes, do little movements of placemark in admin panel, in this case your placemarks will get latitude/longitude (not only text address), and in this case I will create placemark without geocoding - may be a little bug exists.
If all 3 steps will not get you correct map - I'll need to access to joomla admin panel to check my extension settings and need to see what parameters you pass to article (plugin call)