eSATA connector goes into the MB in one of your SATA connectors next to where you have connected the HDD (black thin SATA lead)
Behind the cables on the MB it says SATA_0 (blue cable goes in there)
and SATA_1 ( black cable)
Also my board only has 4 screws in it, with around another 4 holes that dont have screws. Should I have got more?
To be honest the + and - have always confused me , but as a rule of thumb I always go with coloured wire as positive
Your pc works, I'll follow you xD

