Problems with default date and time

I have created a table with date and time fields by using what I read as
being the correct default statements, but I get the date and time the DB was
created at each insert instead of the current date and time.

+----------------------------------+----------------------------------+-----
--+
| Field | Type |
Length|
+----------------------------------+----------------------------------+-----
--+
| ord_id | int4 not null default nextval ( |
4 |
| req_id | int4 not null default nextval ( |
4 |
| ord_description | varchar() |
1500 |
| ord_priority | varchar() |
1500 |
| ord_pri_order | int4 |
4 |
| ord_time | time default text 'now' |
8 |
| ord_date | date default text 'now' |
4 |
| ord_timestamp | timestamp default text 'now' |
4 |
| ord_tech | varchar() |
1500 |
| ord_stat | varchar() |
2 |
| ord_notes | varchar() |
1500 |
| ord_whse | int4 |
4 |
+----------------------------------+----------------------------------+-----
--+

The insert statements for the following records were executed about 30
seconds apart.

|09:34:22|08-13-1999|1999-08-13 09:34:22-04|test3 | | |
96| 95| | |
|09:34:22|08-13-1999|1999-08-13 09:34:22-04|test4 | | |
97| 96| | |
|09:34:22|08-13-1999|1999-08-13 09:34:22-04|test4 | | |

[PostgreSQL 6.5.0 on i686-pc-linux-gnu, compiled by gcc egcs-2.91.66] on
Redhat Linux 6.0, Kernel 2.2.10

Thanks in advance for the help,
Rob