These Tools were designed for participants in the GALEX Guest Investigator Program (GIP). The GIP had its 6th and last-planned observation cycle in 2010. It has been replaced by the GALEX Community Prioritization Program (CPP). Some tools are much less useful for CPP proposers than for GIP.
In particular, the Planning Wizard is a front end to other tools, which arranges and formats results to be saved, especially for insertion into Guest Investigator proposals for the discontinued GIP. For the Community Prioritization Program, which prioritizes rather than selecting targets, the GALEX Project takes care of safety issues. Much less information is required (and permitted) in CPP proposals, compared to GIP, thus CPP proposers will probably not find the Planning Wizard useful.
The tools most likely to be useful for CPP proposers are the Target Observation and Archive Search Tool and the Sky Plot Tool, for finding and plotting archival and planned observations, the Exposure Time Calculator for calculating signal-to-noise ratios, and the Visibility Tool for determining what time of year observations are possible.