Oops, sorry -- Yeah, I got it.
As far as compiling goes, I only had to change one thing -- I opened the file
C:\cygwin\home\ [User Name] \rockbox\apps\plugins\SOURCES (SOURCES is a FILE with no extenstion if anyone wants to know), and added the line, "test_codec.c" -- printed here in red
#if CONFIG_CODEC == SWCODEC /* software codec platforms */
mp3_encoder.c
wav2wv.c
#else /* hardware codec platforms */
#ifndef HAVE_MMC /* not for Ondio, has no remote control pin */
alpine_cdc.c
#endif
splitedit.c
#endif /* CONFIG_CODEC */
test_codec.c
#if LCD_DEPTH > 1 /* non-mono bitmap targets */
matrix.c
#endif
"CONFIG_CODEC == SWCODEC" (the phrase that the Wiki guides you to) appears twice in the file. The code you see here is the second instance of it (starting at line number 118)
Configure...make....make zip ---- and you're home.
Thank you bascule.
(I'm not sure is this topic is still a waste of space, but if anyone in charge thinks so then please do remove it.)