[CentOS] Netware server emulation on Linux

One of our group companies has just 'gone live' on a new laboratory
management package. Although the software is M$-based (ie: expects a M$
server at the heart of it), it is running with its core database on a
CentOS3 server using Samba for client access - in fact, the developers are
amazed at the performance and say it beats a Win2K/2K3 server 'hands
down'!!!

Anyway, the old lab management app that I inherited has its database hosted
on a Netware 3.12 server and the client app is written in Turbo Pascal
including database units compiled with a specific Netware switch and if we
try to run the db off the Linux server using Samba we get record lock
errors. Unfortuntely, we have no confidence in re-compiling the ancient
source code, expecially since the company that developed the database engine
is long gone. We need access to the old data for reference and although I am
going to attempt to extract it all and do some PHP stuff with it, a Google
search turns up two netware emulation packages for Linux - lwared and
mars_nwe - so my question is this: has anyone around these here parts used
any or both of these apps with CentOS 3 or 4 and if so can I have any useful
insight? I suppose the ultimate test would be to try them both but a head
start would be aprpeciated.

Thanks as ever,

Nigel Kendrick