Customizing Opensource Software

We need to customize the open source dictionary software found here: [login to view URL] This dictionary supports SDB, XDXF, DSL, MOVA and StarDict database formats. We need following customizations - We have a dictionary database(a bilingual dictionary) in MS Word format and want to make it an electronic version based on the said open source software. - We need to have a method to enter the definitions to the software database by copying one by one from the Word file (while keeping colors and formatting). Only we should be able to enter/edit definitions and users should not be able to do so once the software is distributed. - We need to be able to distribute the software on our own as a new version as and when we update the dictionary database. - The software will be re branded (distributed as freeware)and any unwanted features (like adding new dictionary databases)need to be removed.