You don't put the http:// on the start of a tracert, it's just:
tracert portal.plus.net
Oh, OK:
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\Jerry>tracert
www.portal.plus.netUnable to resolve target system name
www.portal.plus.net.
C:\Documents and Settings\Jerry>tracert portal.plus.net
Tracing route to portal.plus.net [212.159.8.137]
over a maximum of 30 hops:
1 2 ms 1 ms 3 ms my.router [ipaddress]
2 28 ms 27 ms 30 ms lo0-plusnet.ptn-ag1.plus.net [195.166.128.123]
3 27 ms 26 ms 30 ms ge0-0-0-103.ptn-gw1.plus.net [84.92.3.17]
4 30 ms 30 ms 29 ms gi0-2-32.ptc-gw1.plus.net [195.166.129.10]
5 35 ms 35 ms 34 ms se3-0.pih-gw1.plus.net [195.166.129.250]
6 38 ms 39 ms 43 ms vlan8.pih-gw4.plus.net [212.159.0.30]
7 35 ms 37 ms 39 ms pih-al4.plus.net [212.159.1.36]
8 36 ms 60 ms 34 ms portal.plus.net [212.159.8.137]
Trace complete.