"Relative Path" means the path to the refernced file is "relative" to the FileMaker file's location--usually this means that it's in the same folder. FMS should evaluate relative paths the same, but now the FileMaker files are in the directory where you've configured server to open and host them--so this might change how the relative path is evaluated since the physical location of the file has been changed.
PS. what is "FileMaker Tasks v2.0"? It isn't a starter solution that comes with FileMaker.
(Sorry about the delay, I didn't notice that you had answered my question)
That's what I would have figured too. but putting them in the same path doesn't seem to work.
Filemaker Tasks 2.0 is a database that Filemaker used to sell, but they now give away to Technet members. Its pretty close to what I need, but I am having trouble getting it to work on FMS.