contaplus

Contaplus is Propietary software for Windows only Platform.

You can use:

http://abanq.org/productos/productos.php?fam=desc

or

http://www.gtsiberica.com/index.php?option=com_weblinks&catid=19&Itemid=37

or

http://developer.berlios.de/projects/bulmages/

or

http://www.gnulinex.net/softliberado/facturlinex.php

or

http://www.gnulinex.net/descargas/descarga.php?Product=http://www.gnulinex.net/linex-pyme-2006/dists/cl/linex-pyme/binary-i386/contalinex-src_1.2.0_all.deb&DownloadID=24

or

http://abanq.org/productos/descarga.php?ref=abanq_22_linux

or

Use Virtual Box Seamless Mode if you have a Windows Licence.

Maybe Wine would help?
(Wine Is Not an Emulator) - just use the searchable applications database to try to find instructions on getting a particular Windows program working in Linux - usually not easy, much better to get a native linux program instead.
http://appdb.winehq.org/
http://www.winehq.org/

Good luck and regards from
Tom :)

If you are still having trouble with this then please post it as a new question. Only the most recent questions tend to get looked at so posting/reposting a question just before america arrives online gives the best chance of getting a good few answers.

If the problem has been resolved then please follow the link to the forum thread and mark it as Solved.

Good luck and many regards from
Tom :)