These two threads may be of some assistance if you looking for Dreamaster’s Grindhouse projects:
Dreamaster’s Denoise, Regrain And CC of ESB Grindhouse (Released)
Dreamaster’s Single Pass Regrade of Grindhouse ESB (Released)
If you’re looking for some of the TN1 projects then there are some featured in ‘Index for ‘Original Trilogy Preservations’ section of An Index Of Projects & Help Thread for Star Wars Preservations.
As CloakedDragon97 says, they may be on MySpleen or Usenet too.
Good luck with it 👍