I am in the process of testing your replication suite and I encountered a problem with the ib_repl.so.

My configuration is the following :
Source Side : Windows XP SP2, Firebird2, ibreplicator_2.0.build_16.1.win.exe
Target Side : Kubuntu, Firebird2 (with 'UdfAccress = Restrict UDF;' in conf file)

On the Windows side everything works ok but whatever I do I get an error each time I try to create the system objects on the target side :

First I copied the ib_repl.so provided in ibreplicator_2.0.build_16.1.win.exe on the Linux side in firebird2/UDF.
I get the error :
Access to UDF library "libib_repl.so" is denied by server administrator.
If I rename 'ib_repl.so' to 'libib_repl.so' I get this error:
invalid request BLR at offset 417 function REPL$BLOB_TO_TIMESTAMP is not defined module name or entrypoint could not be found.

Then I copied the ib_repl.so provided in ibreplicator_2.0.build_10.1.i386.tar.gz on the Linux side in firebird2/UDF.
I get the error :
Access to UDF library "libib_repl.so" is denied by server administrator.
If I rename 'ib_repl.so' to 'libib_repl.so' I get this error:
invalid request BLR at offset 417 function REPL$BLOB_TO_TIMESTAMP is not defined module name or entrypoint could not be found.

So finally I compiled my own ib_repl.so from the sources provided in ibreplicator_2.0.build_10.1.i386.tar.gz.
I get a slightly different error :
invalid request BLR at offset 559 function REPL$STRING_COPY is not defined module name or entrypoint could not be found.

Any suggestions ?