How do I add and re-arrange the columns in the product list?

[toolance]

Hi Folks,

 

Thanks for the advice so far on all my other topics.

 

What I need to do now is add a 1 or 2 columns to the products listed in my categories. I'm wanting to add an extra column which will contain a "download preview" gif/link to an audio demo file. Will I need to also add another field in the database table? if so how do i get it to correspond to the pages in the catalog?

 

I'd also like to re-arrange the order of the columns so that I can decide where in the table the price is displayed or the "buy now" button.

 

For Example

 

Track Name Price: $39 add to cart Preview MP3

 

The Preview MP3 link/graphic will link to an audio file I specifyand I may even want to add another column later on with an "info" button which takes them to the full description.

 

I hope I've explained this well enough.

 

Cheers

T.Lance