I'd say just grab OpenOffice. It's 100% free and open source. Make sure you get it from a legit site though (like SourceForge), and be careful not to install any advertiser products that may come "conveniently" bundled with it.
EDIT: Yay, you fixed it
Your not out of the water yet mister
Now you need to put up a video tutorial of how to get the ships in game, (and not just hack it into an existing campaign) I mean so the AI fleets uses it too!
EDIT: I took it upon myself to make the .ship files for the ships, one Energy based and one Ballistic Based. Please note, I did not include any missile launchers.
I cannot say how balanced they are compared to other cruisers, but I did make their stats based on other vanilla cruisers.
Took quite some time to get the bounds right.. since I'm a bit of the perfectionist I did it by hand in the .ship file.. just using the ship editor to get the approximate coordinates, but I can happily say, both sides of the ship are identical as far as bounds go.
The turrets on the other hand, don't seem to be quite mirrored, they are off by 1 pixel sideways. but I matched them to the .png so I blame 51ppycup
http://www.mediafire.com/?2z2rr9dq0jjp3k9 both in one mod
And
http://www.mediafire.com/?8zgd239c78m3n7p seperate mods
Also note, this does nothing to add them into the campaign as I do not know how to do that other than hacking a save file. (which is shown in the tutorial video)
EDIT Seems I made an error in the -ship files, will reupload asap.
EDIT 2: Fixed, Please note I have not had a chance to actually test these at all.