The connectors are the same.
http://www.ebay.com.au/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313.TR0.TRC0.H0.X2zz+cop+connector.TRS0&_nkw=2zz+cop+connector&_sacat=0
The 1ZZ COPs are physically shorter.
Try, http://www.rockauto.com, you should be able to pick one up for less than $80AUD shipped. They are a trustworthy and fast company that I have used many times. I actually bought a set of 1ZZ COPs from them.
Looks like it is an aftermarket filter. It looks to be positioned where the charcoal cannister normally sits. The cannister may have been deleted already.
There are small drillings in the throttle body that the IACV uses to allow air through, make sure you spray some throttle body cleaner through these as well.