Actually, those missions don't exist, which is why there is no text for them, no strings, and it isn't actually possible to get them, unless you hack the plugin.
Why not just take my advice and play it? Or, heck, why not write your own plugin for your own universe?
Forgive me if I sound negative, but I have had, over the past years, hundreds of emails saying things like:
"You made a mistake in your plugin — two planets are on top of each other. But I fixed it by moving the planet — now I'm going to post the fix on the plugins pages"
"You made a mistake in your plugin — it's not actually possible to achieve Mission X, so I hacked it and now it's easy. If you like I'll post it on the web board"
"You made a mistake in your plugin — some of the missions start before others are finished. If you like I'll show you how to fix it"
"You... ... plugin — if you fire IMP missiles you can blow up your own ship. It's easy to fix it though, and if you email me I'll tell you how"
And then there was load of emails that said things like:
"I am making a TC which is going to be bigger than yours. In fact, it's going to be twice as big with twice as many planets, twice as many missions, twice as many weapons and twice as many outfits."
"I am making a TC and would like to use all your graphics. Is this ok?"
"I am making a TC which is going to be the biggest ever but I am no good at writing missions/designing ships/making maps/doing landing pics. If you send me about a hundred I will select the best and you will get your own PERS in my game."
"I have just made a plugin which makes all the ships and outfits in your game 0 credits. This makes the game much better. Can I post this on the archives?"
------------------
M A R T I N • T U R N E R
(url="http://"http://www.AmbrosiaSW.com/cgi-bin/vftp/show.pl?product=evo&category;=plugins&display;=downloads&file;=FrozenHeart104.sit.bin")Frozen Heart(/url)
(url="http://"http://www.AmbrosiaSW.com/cgi-bin/vftp/show.pl?product=evo&category;=plugins&display;=downloads&file;=FemmeFatale.sea.bin")Femme Fatale(/url)
(url="http://"http://www.ambrosiasw.com/cgi-bin/vftp/dl-redirect.pl?path=evo/plugins&file;=Frozen Heart - the No.hqx")Frozen Heart - the Novel(/url)