There is one imagehide freeware steganography software, but i can't assure that it will fulfill your requirements.
You can also check this site:
http://www.jjtc.com/Security/stegtools.htm
Hope it will help you.
Nero saves the format in .ncd.I don't think any software supports this format.So you have no option but to install the Nero software in computer attached to printer though the installation disk.
ALCXMNTR, is a Driver for Realtek audio, which also acts as a spyware for sending computer data to Realtek.It can cause problems but i don't know how big.If your computer is working, try running some spyware detection software as Spybot,Maybe that may arrest the problem.
Well, your forum looks OK and the subjects r interesting, but your forum name and specially logo design are bad, I think you could do better than your present design.
Overall your site is good.
No, Milkshape is a shareware,it can be used for few days for free, but you would have pay if you wish to use it regularly. So you have come across the right software and right price.There is no scam.