lots of LOCKED processes in MySQL 4.1.16

[Max]

Hi to all! I am using MySQL 4.1.16+Apache2+php 4.4.1 about month, and i have a problem when one of my user begin use IPB (Invision power board).
I have a lots of "locked" status processes in MySQL with time more than 1000 sec.!
I dont understanding why can i do to kill them !? Help me somebody please!

Here is my.cnf
[mysqld]
#datadir=/var/lib/mysql
datadir=/wsu/db/mysql
socket=/tmp/mysql.sock

init-connect='SET NAMES cp1251'

default-character-set=cp1251
default-collation=cp1251_general_ci

log_slow_queries=/var/log/mysql-slow-queries.log
long_query_time=20

skip-locking
skip-innodb
skip-bdb

query_cache_limit=400K
query_cache_size=15M
query_cache_type=1
max_connections=300
max_user_connections=20
interactive_timeout=10
wait_timeout=5
connect_timeout=10
thread_cache_size=60
key_buffer=70M
join_buffer=5M
max_allowed_packet=14M
table_cache=1200
record_buffer=15M
sort_buffer_size=15M
read_buffer_size=10M
max_connect_errors=10
# Try number of CPU's*2 for thread_concurrency
#thread_concurrency=2
myisam_sort_buffer_size=15M
log-bin
#server-id=1


[safe_mysqld]
err-log=/var/log/mysqld.log
#pid-file=/var/run/mysqld/mysqld.pid
open_files_limit=4192

[mysql]
no-auto-rehash
#safe-updates

[isamchk]
key_buffer=40M
sort_buffer=40M
read_buffer=10M
write_buffer=10M

[myisamchk]
key_buffer=40M
sort_buffer=40M
read_buffer=10M
write_buffer=10M

[mysqlhotcopy]
interactive-timeout

[client]
default-character-set=cp1251
default-collation=cp1251_general_ci


System RedHat 9.0

Help me please!