burning Castlevania SOTN help

how should i go about this. I have nero so what should i do? (I'll download the ISO later)

Use ImgBurn instead, it's easier to use and much better.
It's free so just Google it.

Burn the image on the lowest speed possible on a brand CD such as Verbatim or TDK. Reprinted cover CDs aren't suitable.

I now have an APE file and a BIN file - what should i do?

Just open ImgBurn, click the big button that says "Write image file to disc". Select the BIN file in the top, there's a little icon of a folder with a lens, select the burning speed, around 4x is OK. And just click Write.