This ROM and Theme are very Metamorph friendly. If you don't like a particular icon or icons, simply go to droidpirate.com and browse through their selection of notification icons then use metamorph to apply them. You can, of course, do it manually by taking the icons from wherever and putting them in, but metamorph is very easy.
As for the icons you guys see, Juicemane posted a .zip with them back in one of his previous theme releases... for 1.6 I believe. You can use Desktop Visualizer to make your custom icons.
Icons can be downloaded from here