This is just a record of my bad day to help if someone got the same case
I just get this morning a new test device nokia 5800 xpress music (Orange)
with update version 11.0.008 (11 dec. 2008)
when I try to install TRK on this device I get a "certificate expired" error.
I did the same installation last week on another nokia 5800 xpress music last week with no problem (let say not so much problems to be exact) but it had a different update version (10.I-don-t-remember)
I tryed to do the installation directly from carbide debug configuration pane and using PC Suite, with no effect
I tryied to change the phone date with only one effect : setting a date previous to 11 nov 2008 make the error message to be changed by a "certificate not yet valid" error
I tryied to change the pc date and copy the sysx to accord file date to the date in the past of the phone with no effect.
I tryied to update carbide and get the last sysx
and just when I was writting an "Help me please" message here, a teammate sugested me to get a try at a "hard reset" of the phone (*#7370#). This solved the TRK installation problem. The phone was just new so I was pretty sure this would have not effect...