[Serusers] SER, presentity and mySQL

Hi, I'm working wich SER and making it to suport presence. Now I have SER instaled with the mySQL and pa modules loaded, the thing is than I make the pa module to use db to store the presence data, but when I send a Notify to the server its don't store any data in the presentity_contact table, and I want to know why it dosen't store anything in there. If some one knows why isn't stored any data, of if I make the notify bad, or if I doing this in the wrong way... please tell me, my objetive is to store the presentity status in teh data base. here is the notify than I use: NOTIFY sip:10.22.1.5:5060 SIP/2.0 To: <sip:angel@10.22.1.249> From: <sip:angel@10.22.1.249>;tag=edf6b60e8b292eeca4ee51d20e01ffa7-e36a CSeq: 1 NOTIFY Call-ID: af2756608d177822 Content-Length: 244 User-Agent: Sip EXpress router(0.9.3 (i386/linux)) Event: presence Content-Type: application/pidf+xml Subscription-State: active;expires=594 <?xml version="1.0"?> <!DOCTYPE presence PUBLIC "//IETF//DTD RFCxxxx PIDF 1.0//EN" "pidf.dtd"> <presence entity="sip:ninguna@10.22.1.249"> <tuple id="9r28r49">ser"> <status> <basic>closed</basic> </status> </tuple> </presence>