to be honest, i think i was lucky.
you need to copy the app file to system/bin and the you need to modify the config file which is just a text file. but, if you have a profile set up, you need to modify this config file in profile settings. take a look at this:
"Installation is no different from PB 622/626 etc. Just unzip into the internal memory the following archive:. Tricky part is extensions.cfg. It should be edited if present or created. link to the ready extensions.cfg file. It should be placed into system/config or system/<profile name>/config folder depending on whether profiles are used or not.", a tutorial provided by pkbo.
Nate, change the .txt to .cfg