You need to know the friend id of the user whose private comments you want to see, if you have it you simply paste the following url into your browsers address bar and append the friend id to it:

copy this url

Myspace will probably disable this method of viewing hidden comments pretty soon so you better hurry up and take fast look at the profiles that you want to snoop on. A way to view pictures on a private profile is to append the friend id to the following url

http://collect.myspace.com/user/viewPicture.cfm?friendID=

source: grownupgeek

To do this, you need to take a look at the address bar when viewing a users profile. You should find a parameter friendid=number.

Use this number to manually load the page that is hidden:

http://comments.myspace.com/index.cfm?fuseaction=user.HomeComments&friendID=number
http://blog.myspace.com/index.cfm?fuseaction=blog.ListAll&friendID=number
http://home7.myspace.com/index.cfm?fuseaction=user.viewfriends&friendID=number

via atariboy