@a_jay, first of all when you put the recording on Soundcloud. you have to put it to be accessible to the discorse to create an embed what actually means it has to be kind of public (like on YouTube when you put the setting that those with the link can see video for example), otherwise it will not appear here. When this is done, you paste just pure link of the track on here and software will recognize itself as an audio from soundcloud and embed it.
I hope it helps. If this still doesn't work, you'd have to tell some more details in order to one could offer some more help.
Sorry, it's obviousl it's about 1:20 AM here and I just didn't go through the end of the topic to see that you actually managed to post the recording on here after all. So, ignore my message. I'd delete it but it wouldn't be deleted anyway, despite what software says so let it be here in case someone else would have the same troubles.
Oh, and I don't know how many of you know that you can actually record directly to the soundcloud itself so you don't need to upload additionally? If you give the permition to Soundcloud to access and use your microphone of course. I've tried and sometimes the quality of recording is mcuh better than recording separately and uploading afterwards.