Kickstart your WP Shop

Ok the developer has also written some instructions!

Activate plugin
configure payment
click gateway, activate paypal payment modul
click “configure”
email: shop owner email, probably the same as the blog owner
operating mode: If you haven’t set up paypal yet, test first in the internal sandbox. To use a paypal sandbox, you’ll have to set up a paypal sandbox account (which has nothing to do with your real account). Once you’re ready, use the “normal” mode
in order to get a PDT(payment data transfer) token you have to
register at paypal.com
upgrade your account to premier or business account (note the differences in charges; decide on the turnover you expect)
click on “profile”
click on “website payment preferences”
your first option is auto return. Turn it on, and add the link to your return page (find it on the paypal configuration page, or in your blog frontend, it’s titled “thank you for your purchase”)
your second option is pdt. Switch to “on”
submit the page
your pdt token will be displayed as a long string of letters and numbers.
Copy this token, and paste it into the configuration
To set up the IPN link
Copy the IPN link from the configuration page
On the paypal “profile” page, click on “Instant Payment Notification Preferences”
Click edit
Tick the checkbox
Paste the link
Submit
Logout paypal, if you want
Submit paypal configuration page on your site
Add categories
Click on categories
Click on “create new category”
The form field on the left will now be editable
For categories in the first level, just enter the name and a brief description, leave the parent select box as it is. You’ll have to do this for your first category
Click save
Add more categories, if you like. If they are subcategories, select the parent (the main category) from the dropdown list
Add products
Click on products
Select “create new”
Add all the information (this needs some more explaining…)
If you want to add a picture
Take your ftp client to the folder where you installed wordpress. You should see folders such as wp-content or wp-includes
Create a folder called wp-images (all lowercase)
Go in there, and create a folder called wpshop (no hyphen, all lowercase)
Make this folder writeable for everyone (chmod 777)
Configure your shop
Go to settings
The minimum you have to do is to open your shop
Select “options”
Change “shop open” to yes
Enter a shop title
Enter a shop email address
Select your country and currency of trade
Select a currency format
Select a date format
Alter more options, if you like
Press “save”
Set general Settings
Set “show prices” to yes
Set “show buy button” to yes
Alter more options, if you like
There are more options which you can alter by selecing them from the dropdown box
You’re ready to go!