I am having a problem with the sister site. Any one have a clue who I should be addressing this with?

Yes i still have Mod access so what is the issue?

2 Days ago I uploaded the scripts from this thread, first post.

This was my first attempt at uploading to gimpscripts ever.

I forgot to add two pieces of info:
1. They require G'MIC 1.6.8 or greater
2. They optionally require DIEGO_color_mod_lcs

They appear to not have uploaded as I cannot find them. I seem to recall reading that a "first upload" requires manual intervention by someone.

Also, since I do not know what I can and cannot do there regarding editing, could the main content be edited (I will do it myself if I have the permissions) to include that info? If not editable (by self or others) I can add it as a first comment to the post.

...so, it's not only me who doesn't master that ancillary site; why not to improve it so that posting/amending/updating is made easy as posting/amending/updating under gimp-chat?
(or: why not to reserve a specific thread under Gimp-chat ONLY for that purpose? the current one is a pot-pourri)

Second dinasset's motion!

Normally if you contact Tux he will give you access to upload and edit your scripts. I thought this was already possible via the upload scripts and plug-ins link? Seems Tux may have the uploads set to be checked by a mod as to whether they be a safe file or not. Then a mod posts the files.
Why dont you send them to me via email and i will upload them to gimpscripts for you guys. PM me for my email contact. I will set up a sticky forum under scripts and plug-ins with this information.

Can you guys upload via that link though? ie http://gimpscripts.com/upload-script/