You could use this, this program allows you to search for a frame 1 (or every other frame you want) Shiny Egg PID, if you want it non-shiny, you can just fill out a random ID/SID. (Just make sure it won't match the ID/SID your game has).well, I downloaded 7.50 and all I see for menu options relating to HGSS are Method J/K and Breeding (HGSS).
Nothing that can give me the PIDs of eggs in HGSS :(