how to find and apply new Support Packages?

Hi to everyone.

The system is SAP R/3 Enterprise (may 4.7 ext2?)

The spam version is 6.20/0020

i have to update the support packages, so i went on https://websmp107.sap-ag.de/swdc, but i dont know what SP i have to download.

the situation is (so i have to update all of them?):

SAP_BASIS 620 0059 SAPKB62059

SAP_ABA 620 0058 SAPKA62058

SAP_APPL 470 0018 SAPKH47018

SAP_HR 470 0058 SAPKE47058

EA-IPPE 200 0004 SAPKGPIB04 .

PI 2003_1_470 0002 SAPKIPZH52

PI_BASIS 2003_1_620 0002 SAPKIPYH52

ST-PI 2005_1_620 0002 SAPKITLQG2

EA-HR 200 0015 SAPKGPHB15

LSO 200 0018 SAPK-200PIINLSO