Hi, just installed 1.1 version on J1.5.3, CB1.1 with J integrated SEF function enabled.
All is working fine.
I used joomlaexplorer to upload and overwrite files as indicated into hotfixes package readme files.
I can login, see the notification on cb_login (but not the popup even if configured to show it) but when I click to the message link I get a weird "component not found".
I had to reinstall the component and now it works again but without hotfixes...
Furthermore, popup notification doesn't work for me. Settings are correct into uddeim conf panel, into CB_login (not patched, the official CB1.1 one) and into mod_uddeim_notifier.
Its not a problem with uddeIM. Seems to be a problem with your configuration.
Have you created a menu link to uddeIM?
Regarding notifications please check the readme. Maybe the user has not enabled popups in his config. There are also some other issues which are described in tge readme.
uddeIM & uddePF Development
CB Language Workgroup
CB 3rd Party Developer