I'm not sure if you're asking for clarification of the diagram or what. If you haven't yet, look at the first installation fiagram (link in my last post). It's a great picture, and shows where each cable goes.
I'm fussy and will put the 2 left (#1) LNBF ports into the left switch (and label it #1) and feed that to my #1 receiver. I also put the 119 LNBF into the #1 port of the SW21. Ah! Maybe that's the unclear part.
Don't forget to ground BOTH switches, and the dish itself. There is dual RG-6 available that also has a ground wire attached - makes life easy.
I don't know where you are but if it's convienent, find a local retailer and see if he's willing to make up some cables for you for the dish to switch feed. I'm thinking that your original cables might be getting old, so beings you're taking things apart to put the second set in, it's cheap insurance. Take accurate measurements, and don't forget to add some for drip loops, and don't be surprised if you still mount the switches a little above or below the planned location.
The reason I say to have this done is that the 'pro' will have a compression tool and silicone-filled connectors (if he doesn't, put him on your black list and try another). These connectors are the best, and you don't want later trouble up on the dish. He probably also has the dual RG-6 with 'messenger' ground wire.
This part can get a little confusing.
Normally, you cut the cable so that the ground wire is 'offset'. That is, a pigtail at the switch end so you can connect it to the lug, and it'll be short at the dish end because of the last cut - but that's OK - the ground doesn't go up the LNB arm, so you'll have plenty of wire there.
Expect to pay $2 per cable plus say 0.25/foot. It's worth it.
If you need detailed help on grounding, let me know - it's important.