Sorry, the link you show me on that page is the Classic Router firmware (non- Linksys Smart Wi-Fi) EA4500 version 2.0.37 (Build 131047). I have downloaded it and got it worked in my EA4500.
What I asked is the old style Classic Router Setup Software(Cisco Connect Setup Software for PC) that can work with version 2.0.37 Firmware, the one on EA4500 support page EA Series Linksys Smart Wi-Fi Setup Software for PC
10/31/2012 Ver.2.0.12304.0 can't work with Classic router firmware!
It's sth like this pic
