SAP 2007A SP 01 PL 08 up path to SAP 8.81 PL 5

Wonder if anyone can help me.

I am sure this information is somewhere hiding on the sap portal.

All i would like to know is can i upgrade from SAP 2007a sp 01 pl 08 straight to SAP 8.81 PL5 and if not what level do i need to go to 1st then to 8.81 pl 5.

Also if this information is on the sap portal can someone point me in the right direction as i really sturggle to find info on site..

Jo