tcl and pgrd problem

We are trying to install Postgres replication using pgReplicator.
We are following the installation instruction according to
http://pgreplicator.sourceforge.net/installation.html

The problem is with running pgrd daemon. There is no errors when we
compile TCL-DP but when we run pgrd we have the following errors:

[replicator(at)demofbo bin]$ ./pgrd
couldn't load file "/usr/lib/tcl8.3/dp4.0/unix/libdp40.so":
/usr/lib/tcl8.3/dp4.0/unix/libdp40.so: undefined symbol: TclHasSockets
while executing
"load /usr/lib/tcl8.3/dp4.0/unix/libdp40.so"
("uplevel" body line 1)
invoked from within
"uplevel #0 load [list $dir/unix/libdp40.so]"
(procedure "LoadLib" line 5)
invoked from within
"LoadLib /usr/lib/tcl8.3/dp4.0"
("package ifneeded" script)
invoked from within
"package require dp"
(file "./pgrd" line 5)
We have already modified dpInit.c file as it has been suggested
http://pgreplicator.sourceforge.net/faq.html but it did not help.

Is anybody has experienced with that kind of problem?
Thanks,
-Tanya