If your switch only has 7 lugs, it likely has a single common, or pole, connection; this will usually be the center lug. Most 5-way switches, whether of the "import" variety or the old-style USA ones, have eight lugs, with 2 common lugs, one for each pole of the switch.
We've seen these 7-lug switches before, they're apparently chinese-made. Having only the single lug (which is then internally connected to both poles), these are not much use for fancy wiring schemes. If all you want is to switch the HBs like a Tele or LP (i.e., N/ N + Br / Br), it's fine- although you would have redundant positions at 2, 3 and 4.
If you want more switching options, you'll likely need a better switch.
I can't tell what you intend to do because your diagram didn't display. If you are having difficulty posting images, the instructions to do so are in the reference section.
(Note that you can't "attach" a diagram to a post, you have to insert the image into your post from an image host. Only staff are allowed to attach files, to prevent spammers from attaching the bad stuff . . .)
To check your switch, you'll need a multimeter. I would suspect the switching order to be 1-2-3-Com-1-2-3, but it might be 1-2-3-Com-3-2-1. This is for a 3-way switch; for a 5-way, position 2 is always "1 + 2" and position 4 is always "2 + 3".
But first, we need to determine if this switch will do what you want. If it won't, no need to check it!