I have mostly been finding the albums by looking for bands I like and then finding pics of their album covers. When I right click one of those it gives me the option of "save as..." and I rename it so people wont guess the band that way and then save it on my comp in my pics.
If you have a program like paint you can easily edit out any giveaways like if the band name on the cover (I usually just use the spray paint can lol) - then click on the "post reply" and go to manage attachments, and it will give you the option to upload a picture from your computer.
hope this helps.