TRACKING COOKIES and NIS 19.7.1.5

Upgraded several days ago when I renewed my subscription.  Since that time no tracking cookies have been found.  Use IE 8.0.60001.18702 on and x86 machine running SP-Pro 5.1.2600  SP-3.  Enabled  3rd party cookies two days ago after reading this forum ... have had them blocked since forever: this makes no difference.   Full scan, Quick scan .... makes no difference.  I reboot every day and do a full scan at least three times a week.  I suspect that tracking cookies have not gone out of vogue, so what gives?  I do use FireFox v. 14.0.1 on occasion for watching live streams.