Hi guys
First i´d like to thank you very much for all the help you provided during this start.
Now i know what went wrong.
First, we sent the package to BigBoss, who had to redo the package due to hidden OSX files (like DS_store and others) that were packed along with our files. This deb package is generated by the makefile we have, so my mac compiles the code and generates the directory tree, after this, creates the .deb package.
Well, BigBoss redid the package and during this process, inserted the typo on a path.
Also, the symlink is not being created correctly after this recreation of the .deb package, and as a result you see the iblacklist.dylib file not as a symlink, but as a normal file with size zero.
Those two errors killed our package

((((
We are talking to BigBoss by e mail in order to make the package clean again for the painless installation process.
Now, the password problem is something new to me, since i know it was ocurring on 1.9.4 version, but tested it with a special care on this version and really could not see it happening again, since it´s just a matter of saving the password string and the enable state on our database, wich is a regular operation and should always work.
I´m on a business travel now, so i´m not checking my mails at this moment. I´ll do it ASAP !!!
Thanks friends