Temporary redirect - help!

[KnopfBay]

I ran an audit on a new clients website (they did a redesign and fell off of the radar).  One of the major issues that the audit came back with was over 6,000 warnings for temporary re-directs.  This is a large e-commerce site and I know there will be errors but wondering why the company who did the redesign wouldn't do a 301?  Would someone be able to look at this code and tell me if what they did is correct?

One of the many pages that has the temporary redirect:

http://www.toyotapartsstore.com/index.php?route=checkout/cart&product_id=1

Where all the many pages with errors is redirecting to:

http://www.toyotapartsstore.com/index.ph

[BenRWoodard]

I went through this exact issue.  The way to fix it is to add a rel="nofollow" tag to the link that adds the item to the cart.  This will prevent the search bot from indexing or wasting resources on the checkout pages that are dynamically populated.