Peershaul

I need some help, I have tried to install ro and rss on 1.6.1 when its release was new and also 1.8.1, in both of those installs I had problems firstly the SSTO engines were textureless they were very metallic and they didnt had their textures, also the rockets that I have bulit never were able to leave the pad, the launch clamps released and the rocket stayed put and did not move Can you help me fix that?I need some help, I have tried to install ro and rss on 1.6.1 when its release was new and also 1.8.1, in both of those installs I had problems firstly the SSTO engines were textureless they were very metallic and they didnt had their textures, also the rockets that I have bulit never were able to leave the pad, the launch clamps released and the rocket stayed put and did not move Can you help me fix that?

I know who to make the shape of the nuzzle and the throat but nothing else no tubing no combastion chamber nothing do you know some tutorials that can explain that?

There is some tutorials that I can learn from? Because the forum is a bit messy to me and I don't know who to navigate here

I don't have any experience in modding ksp and I am playing on 1.3.1 with realism overhaul and I want to create my own parts but with realistic stats who hard is that? And who can I do that? Thanks for helping