There are two Eclipse projects for the customization, a repository and a Share project. The repository project contains customizations that are applied to the alfresco webapp. The Share project contains customizations that are applied to the share webapp.
In order to load the projects into Eclipse open a workspace and select File->Import. Under "General" select "Existing Projects into Workspace" and select the "AlfrescoGenealogy" directory. You will need to create your own build.properties files. You may use the build.properties.sample files for examples. The paths will need to be changed to reflect your environment. You will need to download the Alfresco SDK and point alfresco.sdk.remote.dir and alfrseco.sdk.server.dir to your Alfresco SDK remote and server directories respectively. For the Genealogy-Repository project, the alfresco.web.dir is the path to your application server's exploded alfresco.war directory.
The alfresco.war.path is the path to your application server's alfresco.war file. For the Genealogy-Share project the alfresco.sdk.* properties are identical to the repository project. The alfresco.web.dir is the path to your application server's exploded share.war directory. The alfresco.war.path is the path to your application server's share.war file. The alfresco.mmt.dir is the path to your alfresco-mmt.jar, which is installed with Alfresco.
If you have installed the customizations correctly, you will see a list type of "Family Member List". Select this type, give the data list a title. To create a family tree, select the data list you just created and select "New Item". There is one more step in order to allow the object picker to "start" off in the datalist directory. Select the "Repository" link from the toolbar at the top of the page and navigate to "Repository->Sites->genealogy->dataLists". There should be one item, the data list you just created with a GUID for a name, something like "248ef1a5-a9fc-487b-881b-3a96aaaba531". If you hover over the name (the GUID) in Share you will be able to edit the name. Rename the GUID to "familyTree".