Hi 67RSSS
I purchased Portal Store and am setting a store up with it now. They have gotten back to me on some issues I had, and the support has been good, but somewhat delayed. They mentioned just moving offices, and not being able to respond as fast as normal. This might be why they haven't gotten back to you.
As for store samples, they don't have any posted on their site but a good example is www.snowcovered.com where DNN modules are sold.
Here is some comments I posted earlier about it in another thread about Portal Store:
I have found that Portal store jumps in where Yande Store left off and adds all the rest of the functionality that I need, including currency converter. It will be able to handle any number of products I need. It does however lack in visual appeal which I am fixing through editable templates and skins There is at least some good documentation on skinning, and I am getting the store to look the way that I want.
For someone who is experienced at skinning this is a good store, for functionally it is complex and robust. It integrated easily with pay pal, and had many other payment options as well as SSL support. It will be able to accommodate all of the store items that I have. However unfortuantely out of the box it is not very pretty, this is where YandeStore had me originally. It is visually much more appealing and has nice and easy to use buttons which clients want. The main complaint my client had about their last store was that it wasn't easy to use.
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In General Portal store is full of complex functionality, and is robust with few bugs, but lacks any graphic design whatsoever. You need to be able to create your own skins to make this store looks good, and even update button graphics etc.
Please let me know if you have any other questions I can aswer about it. I hope this info helps!
James
www.alavri.com