Well, Instead of using the Blank.hwas file (I think it wont work due to the fact its not the same length as the song your making).
So here goes another tutorial...
" How to Make a .hwas File"
Step1. Open audacity
Step2. Import the .ogg file that you are using for your song, into audacity.
Step3. Select all the audio sounds in the file and delete them, so you are left with a blank stage, that is still the size of your song (ex. if the song was 4min 20sec, then your blank stage should still be 4min 20sec)
Step4. Then go to file and select export as mp3
Step5. A window comes up, type in the name of the .hwas you are going to replace, followed by .hwas (ex. AllStarl_song.hwas)
Step6. Select "All Files" as the save type, and click save
Step7. It will ask if you are sure you want to save the file under that name, click "yes"
Step8. Then it will ask you to locate a file called "lame_enc.dll", because Audacity does not export mp3 files on its own it needs this file for the mp3 encoding.
Click Here to download if you do not have it.
Step9. Once you locate the file. Audacity will do the rest. Now your DONE!
Hope this helps all of us