Urgent help needed, database is not starting (no replies)

Database is not starting and hangs at this point:

100725 11:28:22 InnoDB: highest supported file format is Barracuda.
InnoDB: The log sequence number in ibdata files does not match
InnoDB: the log sequence number in the ib_logfiles!
100725 11:28:22 InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
100725 11:28:22 InnoDB: Warning: allocated tablespace 728039, old maximum was 0


I am using Mysql 5.1.48 with Innodb plugins.


Any help please. Its urgent. Let me know any more information needed.