[ic] authorizenet setup?

[interchange-users@icdevgroup.org (Andrew Metcalfe)]

I'm getting the following error back from authorize.net:
(authorizenet): Charge failed, reason: No account id

which seems pretty self-explanatory, except that I've put the account id in
catalog.cfg like this:

Variable MV_PAYMENT_MODE     authorizenet
Variable MV_PAYMENT_ID       XXXX
Variable MV_PAYMENT_REFERER  www.mySite.com
#Variable MV_PAYMENT_TEST     TRUE
Variable AUTHNET_ID       XXXX
Variable AUTHNET_REFERER  www.mySite.com

Do I need to be putting the account ID anywhere else?

What's the difference between the Variable format, and the Route format?  I
didn't find any docs about this.

There was also mention of a [charge mode=authorizenet id=YourAuthorizeNetID]
tag.  Where would this go?

_Am