Alright, here's what you do, I'll tell you exactly what to do to get this with the secuirty patch, so pay attention.
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1 Googe this : naspev.com pokemon heart gold japan
2 Go to the first result
3 Scroll down until you find a poster named Ajuko saying "Pokemon Heart Gold already patched with freeze and English translation patches. I've uploaded this myself which i tested on R4DS and DSTT and the results were: "cool, I got a badge!!!!""
4 Use the link that Ajuko provided. Download it. It has the security patch.
5 Download the translation patcher and put this rom in the "rom" folder.
6 Patch it like you normally would, and there you go! You've got the security patch and the translation patch!