Cannot Install SSIS Or Notification Services

I'm trying to reinstall SQL Server 2005 STD but I cannot get Setup to install Integration Services or Notification Services. I looked in the log and this is what I found. Needless to say, it makes no sense to me. It seems that Setup is trying to find a missing source list for a certain product. I have no clue what that product is. I've spent endless hours trying to figure it out and I'm still drawing a blank. This is a printout of the log.

Integration services -
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MSI (s) (F0:B0) [02:33:01:437]: Machine policy value 'DisableUserInstalls' is 0
MSI (s) (F0:B0) [02:33:02:188]: End dialog not enabled
MSI (s) (F0:B0) [02:33:02:188]: Original package ==> G:ServersSetupSqlRun_DTS.msi
MSI (s) (F0:B0) [02:33:02:188]: Package we're running from ==> C:WINDOWSInstaller188966.msi
MSI (s) (F0:B0) [02:33:02:339]: APPCOMPAT: looking for appcompat database entry with ProductCode '{EE8CFFD9-6E29-4DC3-A967-7348D5F41F44}'.
MSI (s) (F0:B0) [02:33:02:339]: APPCOMPAT: no matching ProductCode found in database.
MSI (s) (F0:B0) [02:33:02:339]: MSCOREE already loaded, using loaded copy
MSI (s) (F0:B0) [02:33:02:379]: Couldn't find local patch ''. Looking for it at its source.
MSI (s) (F0:B0) [02:33:02:379]: Resolving Patch source.
MSI (s) (F0:B0) [02:33:02:379]: User policy value 'SearchOrder' is 'nmu'
MSI (s) (F0:B0) [02:33:02:379]: User policy value 'DisableMedia' is 0
MSI (s) (F0:B0) [02:33:02:379]: Machine policy value 'AllowLockdownMedia' is 0
MSI (s) (F0:B0) [02:33:02:379]: SOURCEMGMT: Media enabled only if package is safe.
MSI (s) (F0:B0) [02:33:02:379]: SOURCEMGMT: Looking for sourcelist for product {8B7E2749-624E-4C61-92FC-2BC18307FF24}
MSI (s) (F0:B0) [02:33:02:379]: Note: 1: 1706 2: {8B7E2749-624E-4C61-92FC-2BC18307FF24} 3:
MSI (s) (F0:B0) [02:33:02:379]: SOURCEMGMT: Failed to resolve source
MSI (s) (F0:B0) [02:33:02:399]: Note: 1: 1708
MSI (s) (F0:B0) [02:33:02:399]: Note: 1: 2729
MSI (s) (F0:B0) [02:33:02:409]: Note: 1: 2729
MSI (s) (F0:B0) [02:33:02:409]: Product: Microsoft SQL Server 2005 Integration Services -- Installation failed.

MSI (s) (F0:B0) [02:33:02:439]: MainEngineThread is returning 1612
The installation source for this product is not available. Verify that the source exists and that you can access it.
G:ServersSetupSqlRun_DTS.msi
MSI (c) (B8:88) [02:33:02:439]: Decrementing counter to disable shutdown. If counter >= 0, shutdown will be denied. Counter after decrement: -1
MSI (c) (B8:88) [02:33:02:439]: MainEngineThread is returning 1612
=== Verbose logging stopped: 5/19/2006 2:33:02 ===

-----------------------
Notification services -
-----------------------
MSI (s) (F0:30) [02:33:07:566]: Machine policy value 'DisableUserInstalls' is 0
MSI (s) (F0:30) [02:33:08:087]: End dialog not enabled
MSI (s) (F0:30) [02:33:08:087]: Original package ==> G:ServersSetupSqlRun_NS.msi
MSI (s) (F0:30) [02:33:08:087]: Package we're running from ==> C:WINDOWSInstaller18898f.msi
MSI (s) (F0:30) [02:33:08:167]: APPCOMPAT: looking for appcompat database entry with ProductCode '{37E9AD9F-3217-4229-B5A5-7A0C82364C6C}'.
MSI (s) (F0:30) [02:33:08:167]: APPCOMPAT: no matching ProductCode found in database.
MSI (s) (F0:30) [02:33:08:167]: MSCOREE already loaded, using loaded copy
MSI (s) (F0:30) [02:33:08:187]: Couldn't find local patch ''. Looking for it at its source.
MSI (s) (F0:30) [02:33:08:187]: Resolving Patch source.
MSI (s) (F0:30) [02:33:08:187]: User policy value 'SearchOrder' is 'nmu'
MSI (s) (F0:30) [02:33:08:187]: User policy value 'DisableMedia' is 0
MSI (s) (F0:30) [02:33:08:187]: Machine policy value 'AllowLockdownMedia' is 0
MSI (s) (F0:30) [02:33:08:187]: SOURCEMGMT: Media enabled only if package is safe.
MSI (s) (F0:30) [02:33:08:187]: SOURCEMGMT: Looking for sourcelist for product {65A498A6-83B9-4B91-99EA-1BA88D73F0AA}
MSI (s) (F0:30) [02:33:08:187]: Note: 1: 1706 2: {65A498A6-83B9-4B91-99EA-1BA88D73F0AA} 3:
MSI (s) (F0:30) [02:33:08:187]: SOURCEMGMT: Failed to resolve source
MSI (s) (F0:30) [02:33:08:187]: Note: 1: 1708
MSI (s) (F0:30) [02:33:08:187]: Note: 1: 2729
MSI (s) (F0:30) [02:33:08:187]: Note: 1: 2729
MSI (s) (F0:30) [02:33:08:187]: Product: Microsoft SQL Server 2005 Notification Services -- Installation failed.

MSI (s) (F0:30) [02:33:08:197]: MainEngineThread is returning 1612
The installation source for this product is not available. Verify that the source exists and that you can access it.
G:ServersSetupSqlRun_NS.msi
MSI (c) (B8:DC) [02:33:08:207]: Decrementing counter to disable shutdown. If counter >= 0, shutdown will be denied. Counter after decrement: -1
MSI (c) (B8:DC) [02:33:08:207]: MainEngineThread is returning 1612