Hello Mario,
Please send you inquiry to us at
info [at] designersandbox [dot] com
Please provide us the project details.
Regards,
Vincent

The banner slider are associate with Joomla core banner component.
You can upload the image through joomla media manager.
Also the width and height for all banner should be the same.

The problem with Android is that...
I got several apps pushing both network.

iTunes are doing 500% better then Android sales.
Android market are mainly driven by free apps.

different strategy need to push through Android
Free with Ad
Free with inApp Purchase

You can still sell through Android, but it need more marketing resource.
But the returns can't break even. This is mainly the reason why ratesConverter said a bit waste of time

my game on iTunes sold over hundreds
but after 3 months, android still had only sold 3 https://market.android.com/details?id=com.gamecre...

it is a very great disappointment to me and the team seeing this kinda results.

well to minimize any problem to this, you may want to use a full url path. http://www.YOURDOMAIN.com/YOUR IMAGE LOCATION/YOURIMAGE.jpg

HI there,
My email is vincent@designersandbox.com

Did you try clearing your browser cache?

Maybe you can send me your site ftp and I can do a quick fix for you.
it differ by the template you use...

Can you send me a link to your site.
you can send me an email with access, so I can fix this for you. vincent@designersandbox.com
Regards,
Vincent

Hi Flavio,
Is there any other errors?
can you present me the error message?

Sure you can use this script, it's a share for the community.
Happy coding!