FedEx module Numinix 1.4.5.2 getting started

I just installed FedEx module Numinix 1.4.5.2 and when I get to step 3 a. (Click Install) the information box reads...
"You will need to have registered an account with FedEx and proper approval from FedEx identity to use this module. Please see the README.TXT file for other requirements."

My question is
does it matter which type of an account I sign up for FedEx and if it does matter then which one is compatible with this module?

Thanks!

New problem along with the one posted above.... Now That I have uploaded the files for this module I get this error when attempting to log in -
There was a security error when trying to login.
I have read this
https://www.zen-cart.com/tutorials/index.php?article=312

But I didn't change those files when uploading the FedEx module.
Any suggestions??

ok so I went ahead and did what the article said anyway.
IT WORKED!
Still don't understand why it worked but
I'm not complaining :clap:

So still no suggestions for FedEx account type??

Well I just went with the small business account....hopefully this works. I Will post either way. PLEASE make suggestion anyway if you have any, thanks!

FlawlessDzign:

Well I just went with the small business account....hopefully this works. I Will post either way. PLEASE make suggestion anyway if you have any, thanks!
You need to login and visit the FedEx Developer Resource Center http://minu.me/2ugd and Obtain a Production Key (aka) meter number.
Fill out the form with all the matching info from your account and choose Consultant.
At the end of the process you'll be given your meter number.

Thanks for the assistance Jabba!! I will try this now and let you know how it worked out.

ok I am having the worst time possible navigating through the fedex site but...
I noticed that when I entered the information into the shipping modules...the meter number auto generated:clap: so as of right now all of the info is in and hopefully I can get this thing goin.

Here is a link right to the application:
http://www.fedex.com/us/developer/product/resources.html

Sorry -
Here is the link for the Production Key
https://www.fedex.com/wpor/web/jsp/commonTC.jsp

I am also trying to figure out how to get my meterID. I can't find any info about it on the fedex site. I did follow the link provided by jabbawest, but no number was provided. I do have an account with FedEx already. Can I get a little help finding the meter ID?

Thanks guys.

Edit: I was able to get the ID following the link... but am having an issue. I did a test run with a clients address to see if if the module was working. I got this error: No Rates Returned, F052 : Sender postal code state/province do not match.

My question is, how come the meter ID didn't auto populate. is there a step to make it do that or at what point will it auto fill? Should I delete the number I created with fedex?