Disaster!

We ran out of disk space on our main server, and now I've freed up 
space, we cannot start postgres!

Jan 23 12:18:50 canaveral postgres[563]: [2-1] LOG:  checkpoint record 
is at 2/96500B94
Jan 23 12:18:50 canaveral postgres[563]: [3-1] LOG:  redo record is at 
2/964BD23C; undo record is at 0/0; shutdown FALSE
Jan 23 12:18:50 canaveral postgres[563]: [4-1] LOG:  next transaction 
ID: 14216463; next OID: 4732327
Jan 23 12:18:50 canaveral postgres[563]: [5-1] LOG:  database system was 
not properly shut down; automatic recovery in progress
Jan 23 12:18:50 canaveral postgres[563]: [6-1] LOG:  redo starts at 
2/964BD23C
Jan 23 12:18:51 canaveral postgres[563]: [7-1] PANIC:  could not access 
status of transaction 14286850
Jan 23 12:18:51 canaveral postgres[563]: [7-2] DETAIL:  could not read 
from file "/usr/local/pgsql/data/pg_clog/000D" at offset 163840: 
Undefined error: 0
Jan 23 12:18:51 canaveral postgres[567]: [1-1] FATAL:  the database 
system is starting up
Jan 23 12:18:52 canaveral postgres[558]: [1-1] LOG:  startup process 
(PID 563) was terminated by signal 6
Jan 23 12:18:52 canaveral postgres[558]: [2-1] LOG:  aborting startup 
due to startup process failure

What can I do?

Chris