Top left are the standoffs, there are 4 already preinstalled to the case. Depending on what size mobo you are using you will need to add extra standoffs to support the mobo. The B bolts are used to secure the mobo by screwing into these standoffs.
Top middle is A bolt for PSU and PCI.
Top right are your B bolts for screwing down the mobo and mounting SSDs
Middle left is the C bolts for your optical drives
Next over from that is the D bolt for your 3.5 inch HDD
Middle right is the E bolt, this isn't to screw the HDD itself but to lock the drive into the cage
Bottom left are the rubber mounts, these slide over the D bolts. Make sure you put them on the right way and then you can slide the HDD into the drive cage. They are rubber to help soak up vibration from the HDD
THen you have your zip straps and finally the P4/8 extension lead......PHEW lol
Personally I move the Black and white (molex fan at rear) to the front as an intake. Put the side fan where the rear exhaust fan was, move the blue LED fan that was the front intake to the top. You already have 1 fan at the top set as exhaust so you know which way to mount the fans if you get confused.
So my setup has 3 120mm fans around the heatsink as exhaust pushing the hot air out (hot air rises remember). You have the one intake at the front but as there is more exhaust fans air is being pulled into the case elsewhere, which brings me onto.....
Pop out all of the DVD bay covers and remove all the metal blanking plates.....this will help air move into the case. The DVD bay covers have foam to help catch dust once you pop them back on. In the dark you can see through the bay covers and you'll see your heatsink fan which will be pulling air through the baycovers and the ceiling fans will help do this too.
I also cut out the mesh over the fans. It helps improve airflow and reduces noise. Definately worth doing on the front intake if nothing else, i know it seems a bit radical but it really works
Have a read of
this thread. Andy was kind enough to take pics and you can see what i'm waffling on about.
Any more problems or questions you know where to find us