Serious problem with DB tables

[Game.ruler]

Yesterday i backed up all the data and database. Then upgraded to rc5. But due to some probs i want to move back to rc4.
Then i replaced all the files and installed rc4. But when i m trying to open my forum i am getting database error. May be due to changes in database while converting to Rc5.
Then i dropped all the tables and  now whenever i am trying to restore older Rc4 backup i m getting following error --

Error

SQL query:

-- -- Dumping data in `smf_log_search_subjects` -- INSERT INTO `smf_log_search_subjects` (`word`, `id_topic`) VALUES ('###', 189), (0, 3), (0, 6), (0, 9), (0, 10), (0, 15), (0, 28), (0, 31), (0, 32), (0, 37), (0, 38), (0, 39), (0, 97), (0, 105), (0, 113), (0, 114), (0, 122), (0, 132), (0, 133), (0, 134), (0, 152), (0, 153), (0, 154), (0, 155), (0, 156), (0, 168), (0, 169), (0, 171), (0, 173), (0, 175), (0, 185), (0, 197), (0, 198), (0, 214), (0, 222), (0, 244), (0, 245), (0, 246), (0, 259), (0, 260), (0, 261), (0, 262), (0, 263), (0, 273), (0, 275), (0, 287), (0, 292), (0, 294), (0, 299), (0, 300), (0, 304), (0, 305), (0, 306), (0, 307), (0, 308), (0, 309), (0, 332), (0, 333), (0, 335), (0, 338), (0, 339), (0, 340), (0, 341), (0, 342), (0, 343), (0, 374), (0, 410), (0, 433), (0, 440), (0, 453), (0, 454), (0, 460), (0, 469), (0, 47[...]

MySQL said: Documentation
#1062 - Duplicate entry '0-287' for key 1

Plz masters help me with this. Its urgent.

[Joker™]

http://www.simplemachines.org/community/index.php?topic=274298.0

[CapadY]

Are you sure all your tables where dropped before restoring the backup ?

Mostly this errormessage is there when the table wasnt empty before restoring.

[Game.ruler]

Thanx joker. i think it will solve my problem.