Threadrock,
I see there tax rate calculated correct, but it never return to paypal review page to show, please advise.
This happens if you have your Express option: Transfer Shipping Options = Yes but do not have an HTTPS address for your website. Magento passes the shipping options over to PayPal so customers can change the shipping of their order while on PayPal’s website. This transfer of information is, quite rightly, only done using HTTPS.
You can either get an SSL certificate so PayPal uses HTTPS or set the Transfer shipping option to No.
If you set the option to no then your customers are redirected back to your website to select the shipping making the checkout process a bit less express.