Hi Shaun - unfortunately, we do not support subdirectories in the latest version of the TFTP Server, which is a large oversight on our part.
I will get things rolling for a hotfix release as soon as we can.
Thanks for the quick reply! You may already be aware, but I found it odd that after upgrading I could no longer "clear log" or resize the window past a certain size (it won't go big enough). I haven't yet searched on these issues, but just wanted to bring it up in case they are also oversights.
Thanks for your help,