Murph,
Many of our errors and warnings are documented on our support website at support.installshield.com. I would start here for help on these warnings as the documents on the site are very good at solving common causes to these. As far as your ICE33 messages, all ICE errors are documented in your AS 5.5 help library that you can search the index for. Just search on 'ICE33' or 'Internal Consistency Evaluators'. Once again, these documents should help to get you started on resolving these.
Once you've resolved them (via opening the .ism file in DevStudio), you can rebuild your .ism in DevStudio into a new .msi file with all your changes. For more help on DevStudio, please see your AdminStudio help library which does have tutorials on getting started in DevStudio.
Hope this helps.
Mark D.
Software Quality Engineer
InstallShield Software Corp.