user error: Unknown column 'payment_status' in 'where clause'

I have installed RC from the second of march.
I have installed the cvs of e-commerce from the same day.

It looks like there is a bug.

When I click on menu item "store" in the admin menu I get the following error:

"user error: Unknown column 'payment_status' in 'where clause'
query: SELECT COUNT(txnid) FROM ec_store_transaction WHERE payment_status = '1' AND (workflow = '1' OR workflow = '2' OR workflow = '3' OR workflow = '4') in /STORE/semioz.com/public_html/includes/database.mysql.inc on line 97."

Also When I try to add a product and go to the "details" page and enter a product ID (101), I get the following error:

"user error: Unknown column 'a' in 'where clause'
query: SELECT name FROM term_data WHERE tid = a in /STORE/semioz.com/public_html/includes/database.mysql.inc on line 97.

user error: Unknown column 'a' in 'where clause'
query: SELECT u.mail, u.name, u.uid FROM users u INNER JOIN subscriptions s ON u.uid = s.uid WHERE s.sid = a AND stype = "taxa" in /STORE/semioz.com/public_html/includes/database.mysql.inc on line 97.

warning: Invalid argument supplied for foreach() in /STORE/semioz.com/public_html/modules/taxonomy.module on line 397.

warning: Cannot modify header information - headers already sent by (output started at /STORE/semioz.com/public_html/includes/common.inc:402) in /STORE/semioz.com/public_html/modules/ecommerce/cart/cart.module on line 480."

It seems that the ec_ prefix is not 100% implemented?

Have I installed correctly?
I have installed all modules and run the SQL script in "store". I have tried to look at the SQL scripts in the module folders, but it seems that they are the same as in "store"?

Other than that? It rocks!

Gunnar