As for the ship browser, that's strange - I can move freely around using the Favourites at the left side of the browser, and it loads the applications folder without a hitch (I don't have anything custom installed on the VM so that might be a reason, but then again it only has 2GB of RAM at its disposal). Try to avoid using double-click to get inside folders, since the browser is looking for directories, not files.
As for the names, yes, that's true, but that matters only for the game itself, and Superluminal takes care of that during exporting. File names don't matter to the editor.
edit: scratch that, just found a bug in image loading, gonna fix it
edit 2: fixed, the app should no longer crash when loading images.
edit 3: notes from the previous post:
- fixed ship projects, but they still need to be tested to confirm if I haven't missed anything
- fixed creation of new ships, needs testing too to make sure it works as intended
- export function needs testing (shouldn't crash, but some properties may be wrongly exported / not exported at all - report which)
I wanted to do that, but since I only had jre7 installed, I shrugged it off due to laziness... I'll see what can be done