This has probably been answered a thousand times before but I would just like to make sure...

If I want to cloak the link thorugh a say 125x125 banner img file...Is it true that I can simply change out the a href= link for my cloaked link and I will be ok...right?

Also I have alot of domains on one hosting account and dont want to use my root domain as part of my "cloak"...can I use sub level domains for this purpose with php and mysql...and is there a way to make the cloak show whatever I want it instead of my link being

can I make it look like this

and does ti have to be an existing domain that I own??

I have proposed this question to CJ and they implicitly told me to not change anything about the link at all...I dont think it to be true so I wanted check here...