a few questions (mostly noob)

It's not. You can try contact the program's author and ask them if they intend to continue work on it in the future.

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Space Empires Depot | SE:V Balance Mod

I find this editor to be too well hidden...
http://spaceempires5.com/en-US/project/Helper+Applications

Can any one give me some tips on how to start a mod.I have some mods but can't get it to work any help would be welcome plz help my email is thank you

If you aren't going to ask specific questions, there isn't much we can tell you.

SpaceEmpires.net | Space Empires Wiki

For your first mod, I suggest the following:

Look in the game directory for a folder called gametypes. Within it is a folder for the stock game. Make a copy of that, rename the copy to whatever you want. ("my mod" for instance) If you get mods off the Internet, once they're extracted from their archive (.zip or .rar usually) they would go here also.

In that folder goes any custom stuff you want your mod to use instead of the stock stuff. For instance, a Data folder would contain modified data files like components.txt. (the parts that go on ships)

Often a mod starts with a changed settings.txt file, so give that a shot. Change the number of systems or the number of enemies or something like that. Congratulations, you've made a mod.

The best thing to do is make changes gradually, and make backup copies of everything frequently. The easiest way to do this is to make a copy of your mod folder (under gametypes, remember?) every time before you start making more changes. Keep at least the most recent four, you never know when a bug will sneak past your testing for a version or two. Reverting to a previous version can sometimes be easier than trying to remember which changes you've made recently and what the original values were for each.

Making mods is easy. Making good mods is somewhat harder. Good luck!