Once you've set up your partition information, and have assigned “mount points” (ie. /usr is the mount point for the /usr file system), the installation program will ask you which partition(s) it should used for swap space. Since your swap partitions should already be identified as such (partition ID # 82), you can press <Enter> to begin formatting those partition(s) for swap usage. I recommend you enable the “Check for bad blocks during format” to ensure the partition is free of potentially damaging problems. It does slow down the formatting process substantially but I believe it is worth the tradeoff.