There are few steps needed to be performed in order to be able to use the full functionality of the plug-in:
Configuring Axis and Tomcat to work with the Lavadora plug-in
To be able to automatically deploy your Web Services to Tomcat server, you need to have defined a user with roles of admin and manager. You do this by editing the file TOMCAT_HOME_DIR\conf\tomcat-users.xml. Structure of this file is simple enough to do it without any further explanation.
You also have to enable AxisAdmin service in order to successfully deploy and undeploy your Web Services. It's done by uncommenting a part of the following file: AXIS_INSTALL_DIR\WEB-INF\web.xml, where AXIS_INSTALL_DIR is a directory under TOMCAT_HOME_DIR\webapps folder (read Axis installation instructions). If you just read the contents of the above web.xml file it should become clear to you which part of it should be uncommented (really).
There's one more thing to do, which is worth mentioning to save you some time. You may need (if you have fresh installations of Axis and Tomcat) to equip Tomcat with activation.jar library, without it Axis will not function properly. You should copy this file to your TOMCAT_HOME_DIR\common\lib directory.
If you have carefully followed these instructions you should be able to use Lavadora in its full potential. If something doesn't work, and you're sure you have done all the above properly, please let me know.