Tsearch in Postgresql 8.2.5

Dear Team,

I'm install postgres 8.2.5 in my server (operating system using Fedora Core 6),
instalation process is succes full.
I want to create table with data type txtidx, but i have error like this:

testing=# create table data (nama txtidx);
ERROR: type "txtidx" does not exist
LINE 1: create table data (nama txtidx);
^

and then, i'm import file tsearch.sql, after that i'm create table agains,
the resault is same.

I don't know that is bug or what ever,
but i need your help....

Regards,

.idris - indonesia