Prebuilt images
These images include gateware for the FPGA configuration and firmware for the LM32 processor embedded in the FPGA. The scu2.jam file is for SCUv2 boards and the spec_top.bit is for SPECv4 boards.
Once you have downloaded these files, you may want to Flash-an-Altera-device or Flash-a-Xilinx-device.