Yes that is correct! Good job. Sorry about late response, helping someone on IRC to catch their own swinub with pokeradar in Diamond. IRC gets you info and help faster :)I think i just understood it.
For example:
I Got frame "XXXX" and then right click for encounter slots and it says: "Sweet Scent (Grass/Cave): 1"
Then I click Platinum encounter table search for the zone that i want and look wich pokemon is in the slot 1, and that pokemon ill get it.
Am i correct?