The problem with J!1.5 is that it encapsulates lagacy modules in a class. A result of this is that "globals" (in uddeIM quite all config variables are globals) are not longer availalable globally.
The problem is not that the inbox does not show new messages, the problem is that uddeIM trashes new messages immediately since "$config_TrashLifespan, $config_ReadMessagesLifespan, $config_UnreadMessagesLifespan" are not available and so treated as ZERO (witch means a very short lifespan for unread messages).
As soon as the configuration file problem is solved, uddeIM will work with J!1.5.
uddeIM & uddePF Development
CB Language Workgroup
CB 3rd Party Developer