CS4 installation problem: Flash/Dreamweaver/Fireworks won't open

Hi, was wondering if anyone could help me. I'm installing Design premium CS4 on 32bit Windows Vista. The installation goes through seemingly alright but then when i try to open Dreamweaver, Flash or Fireworks it brings up an error message saying

"The application failed to initialilze properly (0xc0150004)" with these details

Problem signature:
  Problem Event Name:    APPCRASH
  Application Name:    Flash.exe
  Application Version:    10.0.0.544
  Application Timestamp:    48c73089
  Fault Module Name:    ntdll.dll
  Fault Module Version:    6.0.6002.18005
  Fault Module Timestamp:    49e03821
  Exception Code:    c0150004
  Exception Offset:    00009eed
  OS Version:    6.0.6002.2.2.0.768.3
  Locale ID:    2057
  Additional Information 1:    9d13
  Additional Information 2:    1abee00edb3fc1158f9ad6f44f0f6be8
  Additional Information 3:    9d13
  Additional Information 4:    1abee00edb3fc1158f9ad6f44f0f6be8

All the other programs work fine, its just those ones that won't even open. I've tried reinstalling in every different way i can think of, without AV, with MS SQL and IIS switched off, from desktop with selective startup, you name it and it still has the same problem.

Can anyone help with what might be causing the problem? not sure if its an installation problem or a windows problem (a setting or something) but i'd really appreciate any ideas anyone might have.

Thanks

tom

Oh yeah, also when i look in install logs it brings up this error

ERROR

Log of: object

isRunning {string}: 0

percentComplete {string}: 100

message {object}: [object Object]

Log of: object

            code {string}: 0

            args {object}: [object Object]

which i think refers to the installer freezing when checking the system profile on install but it seems to go through install alright. It also has the following errors.

ERROR

The payload with AdobeCode: {35304775-CB5F-101B-A142-83B5468C225C} has required dependency on:

            Family: InDesign

            ProductName: Adobe InDesign CS4 Icon Handler x64

            MinVersion:

            This dependency is not satisfied, because this payload is x64 and is not supported on this machine.

            Removing this dependency from list. Product may function improperly.