You really shouldn't be messing with the .exe for mods. Read this link to understand where and how to activate mods. 

http://soase.weebly.com/placing-mods.html

for some reason i went into options i didnt seea mod tab do i have to update or download somthing?

Stupid me, you're talking in game. The mods tab should be at the bottom of the Options tabs on the left, depicting a gear symbol. Dunno why it wouldn't be there unless you messed with a core function of the game.

your gonna need to like draw a map or somthing step by step cz im really lost

Make sure you went to the options from the main menu, not in game. But...

Version 1.0 of the original Sins of a Solar Empire did not have mod support. You need to update your game first. What mod are you wanting to run?

im click update game and it goes to the internet and says the site can not be desiplayed

If you have Impulse loaded, just open it and it can provide all updates necessary.

Keep in mind that the SoNE that I saw said:

**Only tested in Entrenchment 1.051**

(so far works in Diplo, but not tested)

So, if you don't have Entrentchment, I can't say it will work. Of course, any update since then could have bugged it up.

Once you've updated the game through Impulse (you can load it via your CD or the Impulse website) you can run the game to produce the appropriate mod folders. This must be done first. 

To change folder options:

Go to Control Panel

Open Folder Options

Click the View tab at the top

Under Hidden Files and Folders in the list, click Show Hidden Files and Folders

Clikc Apply and Ok. This should allow you to see AppData in your Libraries folder

Go to AppData

Open Local

Open Ironclad Games

Open Sins of a Solar Empire

Mods belong in the folder Mods-(current version name and number)

As GoaFan pointed out, you need to go to Options from the Main Menu, not the In Game Menu.

When you activate a mod, you select the mod, press Enable Mod and then press Apply Changes.

That's it.