Working fine here. Can you PM me the two URL you are trying to put ?
haenry wrote:Would be nice to note somewhere, how the link field below the text message works, when you publish a message. Am I right, that this field works for manialinks only?
Yep, you are forced to use ManiaLink in order to promote the system. Moreover it's kinda annoying for the user to get the game minimized everytime he clicks on a notification. I'll change the label in order to make this clearer.
haenry wrote:Is there a special format for the background/icon files?
The icon shoud be square, let's say 50x50 should be enough.
The background should be 2048*1024 to be high def !
haenry wrote:A suggestion: It would be cool to see the amount of comments on one message directly, like it is done on the Maniahome notifications

For sure it would also cause a lot of hits on the WebServices API
Anyway keep in mind that users will bookmark your channel and get all message directly on their ManiaHome notification and they will see comments directly this way.
But I wrote this down as a possible improvement.