Configure replace timer --- conf t revert timer

Question

Dears
Happy new year
I would like your assistance regarding below commands
1- configure replace <file> timer
2- conf t revert timer
For first one, what I understand is that IOS will apply file & If no "configure confirm" is applied IOS will revert back
For seconf, same idea but instead if applying file, IOS will apply commands I enter in configuration mode
Correct ?
If Yes
3- Why once I enter any command, IOS is archieved ?
4- I tried both commands and didnt work ; i.e it never fall backed knowing that I did not apply "configure confirm" !!!
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R1#sh run | section arch
archive
path disk0:rollback
R1#
R1#conf t revert timer 1
Rollback Confirmed Change: Backing up current running config to disk0:rollbackDec-31-01-20-10.736-0  <<--- IOS is archived !
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#
Dec 31 01:20:16.416: %ARCHIVE_DIFF-5-ROLLBK_CNFMD_CHG_BACKUP: Backing up current running config to disk0:rollbackDec-31-01-20-10.736-0
Dec 31 01:20:16.416: %ARCHIVE_DIFF-5-ROLLBK_CNFMD_CHG_START_ABSTIMER: User: cisco: Scheduled to rollback to config disk0:rollbackDec-31-01-20-10.736-0 in 1 minutes
R1(config)#hostname test
test(config)#exit
Dec 31 01:20:52.324: %SYS-5-CONFIG_I: Configured from console by cisco on vty0 (192.168.111.227)
test#
I didnt enter "configure confirm" after that, so i expected fallback but nothing happened !
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R1(config)#hostname test
test(config)#exit
test#conf t
test#configure replace disk0:sismail list force time 1
Rollback Confirmed Change: Backing up current running config to disk0:rollbackDec-31-02-49-54.869-7 ---->> IOS is archived !
Dec 31 02:50:00.425: %ARCHIVE_DIFF-5-ROLLBK_CNFMD_CHG_BACKUP: Backing up current running config to disk0:rollbackDec-31-02-49-54.869- 7
Dec 31 02:50:00.497: Rollback:Acquired Configuration lock.
!Pass 1
!List of Rollback Commands:
no hostname test
hostname c7613_51
c7613_51#
I didnt enter "configure confirm" after that, so i expected fallback but nothing happened
Appreciate your assitance
Many Thanks

Answer 1

Thanks Clarke for your reply
Below is a snapshot of IOS & commands I used
Appreciate your assistance
c7613_51#sh ver | i image
System image file is "disk0:c7600s72033-adventerprisek9-mz.151-3.S1.bin"
c7613_51#
c7613_51(config)#archive
c7613_51(config-archive)#path disk0:rollback
----------------------- conf t revert timer -----------------------
c7613_51#conf t revert timer 1
Rollback Confirmed Change: Backing up current running config to disk0:rollbackJan--2-08-07-12.263-0
Enter configuration commands, one per line.  End with CNTL/Z.
c7613_51(config)#
Jan  2 08:07:17.847: %ARCHIVE_DIFF-5-ROLLBK_CNFMD_CHG_BACKUP: Backing up current running config to disk0:rollbackJan--2-08-07-12.263-0
Jan  2 08:07:17.847: %ARCHIVE_DIFF-5-ROLLBK_CNFMD_CHG_START_ABSTIMER: User: cisco: Scheduled to rollback to config disk0:rollbackJan--2-08-07-12.263-0 in 1 minutes
c7613_51(config)#hostname test
test#
Jan  2 08:07:38.447: %SYS-5-CONFIG_I: Configured from console by cisco on vty0 (192.168.111.226)
test#
test#sh clock
08:09:16.319 CET Mon Jan 2 2012   <<<--- 1 minute passed and no rollback occured
test#
test#sh archive config rollback timer
Time configured(or reconfigured): 08:07:17 CET Mon Jan 2 2012
Timer type: absolute timer
Timer value: 1 min
User: cisco
test#
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----------------------- conf replace revert timer  -----------------------
test#conf replace disk0:sismail list force time 1
%Rollback Confirmed Change is already activated on a config   <<-- due to previous test
test#conf confirm
test#conf replace disk0:sismail list force time 1
Rollback Confirmed Change: Backing up current running config to disk0:rollbackJan--2-08-14-30.269-0 ***
Jan  2 08:14:35.797: %ARCHIVE_DIFF-5-ROLLBK_CNFMD_CHG_BACKUP: Backing up current running config to disk0:rollbackJan--2-08-14-30.269-0
Jan  2 08:14:35.869: Rollback:Acquired Configuration lock. 
!Pass 1
!List of Rollback Commands: *******
no hostname test
hostname c7613_51
Rollback aborted after 5 passes
c7613_51#
*** Dont know why IOS archived config file although I specified a certain file for rollback "sismail" !!
******* Rollback occured immediately although it should wait 1 min "time 1" !!
c7613_51#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
c7613_51(config)#host test2
Jan  2 08:15:12.561: %SYS-5-CONFIG_I: Configured from console by cisco on vty0 (192.168.111.226)
test2#
test2#sh clock
08:18:54.230 CET Mon Jan 2 2012  <<<--- 1 minutes passed & no rollback occured
Many Thanks