Where exactly did you get install files from?
There are only two links right now of our products that are compatible with Gmod13.
They're both 'svn', and aren't ulyssesmod.net domain.
What 'it' are you referring to when saying "did it like it told me to"?
What exactly are you doing?
If you've read the readme.txt files, I'm pretty sure they tell you that, if ULX is running in Listen server mode, you shouldn't need to add yourself as superadmin.
(Though. I could be wrong on that if Gmod13 changed that)
Have you seen our FAQ section here in the forums, it has several FAQs that would probably help you.