Effect of Off-Site Images

[MRCSearch]

I'm getting to start work with a new client, and I've run across something I've never had to deal with before, off-site images.

The site I'll be working on is for an appliance retailer, both online and physical. The way they've had their site built (not something I was part of) a third party company maintains the product inventory side of things. They're sourcing from about 35 different manufacturers, and this third party has direct access to the product information streams. They push the weekly updated information to my clients site.

What this means, though, is that the product images don't live on the client's site. They're hotlinked from the third party's inventory doohickey.

I've never seen something quite like this before. Has anyone else? Any ideas as to what problems I may face when it comes to on-site SEO?

[USHoleInOne]

I have not seen that before, what does the code look like.

Is it possible to save the images and host them on your clients site? Or do they change dynamically over time? (by the retailer?)

[MRCSearch]

They change dynamically as new products are added or removed.

Content is framed in from a subdomain on the client's site that syncs with All You Retail's (the third party supplier) inventory stuff. Content lives in the subdomain, images are hotlinked from a variety of different places (suppliers, AYRs system, supplier info stream).

As for how exactly the inventory works, I'm not 100% sure yet. The site I'm referring to is here:

http://durochersonline.com

You can see what I mean.

I know there are a slew of other SEO problems to be fixed, but this is the one I've never dealt with before. I don't start on the project for a few weeks, just want to make sure I know what I'm in for here.