Zone Alarm disables my Internet Explorer when installed

I am looking for software that...
1

http://www.easycomputertips.com/article-installkhoa

I have a Dell Dimension 3000 running MS XP96, and SP 3 (candidate). At present the Windows firewall is used because I cannot seem to find a helpful alternative. But I would install Zone Alarm if I knew how.
First, i have some applications:Google Updater;Qwest Quick Care;Belarc Advisor;Real Alternative;Foxit reader;Secunia PSI . I used to have Counterspy and Spyware Doctor, but Zone Alarm anounced that they conflicted with it. I uninstallled them.
QUESTION: When i download Zone Alarm, it turns off my Internet Explorer. Can anyone help me get Zone Alarm going along with Internet Explorer and all the above applications? Please help: Advise.

Thanks a lot: Robb