Hi Fuse,
thx for your reply, i made a fresh installation of the msn live messenger and downloaded the latest Msgplus 4.20.0.262. The logging is enabled (come on) and no filters are set. The thing is, it was logging normaly and no configurations have been done and suddenly it stopped.
now even after installing v. 4.2 the same problem is there. it is logging only the current user events