I just got mine, free including all ticketmaster fee's as long as you select mail or online printing. You wont find 100 level, but there are decent 200 and pretty much all 300 level still left as of right now. www.ticketmaster.com search "trailblazers" and pick one of the dates listed below. Choose "Portland Trail Blazers Ticket Net", add 2 tickets (wont let you have more) type in the pasword, and see what it gives you.
copied from Slickdeals:
PORTLAND TRAIL BLAZERS
VS
LOS ANGELES CLIPPERS
ROSE GARDEN, PORTLAND OR
TUE OCT 18 2005 7:00 PM
Code: POSSIBILITY
PORTLAND TRAIL BLAZERS
VS
SACRAMENTO KINGS
ROSE GARDEN, PORTLAND OR
SAT OCT 22 2005 7:00 PM
code: EXCITEMENT
PORTLAND TRAIL BLAZERS
VS
TORONTO RAPTORS
ROSE GARDEN, PORTLAND OR
WED OCT 26 2005 7:00 PM
code: ENERGY
copied from Slickdeals:
PORTLAND TRAIL BLAZERS
VS
LOS ANGELES CLIPPERS
ROSE GARDEN, PORTLAND OR
TUE OCT 18 2005 7:00 PM
Code: POSSIBILITY
PORTLAND TRAIL BLAZERS
VS
SACRAMENTO KINGS
ROSE GARDEN, PORTLAND OR
SAT OCT 22 2005 7:00 PM
code: EXCITEMENT
PORTLAND TRAIL BLAZERS
VS
TORONTO RAPTORS
ROSE GARDEN, PORTLAND OR
WED OCT 26 2005 7:00 PM
code: ENERGY