Wordpress new activation

Hello

Sven i need your help

I 'm working on new engine with wordpress activation. I need to register account on wordpress, extract neccesary data from email then go to activation link and choose my password.

I got a email after registration:
"Username: piotra6779

To set your password, visit the following address:

<http://www.paoloprovinciali.com/wp-login.php?action=rp&key=VqOCkqoaJVsfsWfKjyZc&login=piotra6779>

http://www.paoloprovinciali.com/wp-login.php"


So i did: 

extract from email=logpw,keypw

[logpw]
type=extract
front=:
back=\n

[keypw]
type=extract
front=key=
back=&


Registration step works fine, but i have problem with this link: ( i need to open it , and then type password) 
http://www.paoloprovinciali.com/wp-login.php?action=rp&key=VqOCkqoaJVsfsWfKjyZc&login=piotra6779


I'm trying with this:
[LOGIN_STEP1]
modify url=%targethost%/wp-login.php?action=rp&key=%keypw%&login=%logpw%
pass1=%password%


---
[keypw] - correct extraction
[logpw] - correct extraction


But in Debug mode that I get this:
GET http://www.soitgrows.com/wp-login.php?action=lostpassword&error=invalidkey <- in [LOGIN_STEP1]



I have no idea how to open this link correctly