InstallAware

Can anybody give me a quick guide to creating a patch. I have a IA project which is packaged as web media. I now need to create a patch for it to patch 5 files and add 2. What do I do? I have tried creating a new project and adding the base install as a patch reference. This worked but removed all my run time DLL's! So I thought I would open the base, save it as something else and change the revision GUID. Replace the different files, add the patch reference and bingo. I get an error in this method telling me that the web media blocks cannot be referenced.

Any help of the quickest and best way to do a patch is greatly received.

Building Project: <name>
Output Folder: H:\\InstallAware\\<name>7\\Installs\\7.0.1\\Patch\Deployment Type: Patch
Code Signing: Disabled
Compression: Fast (256-Bit AES Encrypted)
Compiler Variables: UAC=highestAvailable,UPDATE_SERVER=
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Cleared output folder H:\\InstallAware\\<name>7\\Installs\\7.0.1\\Patch\Built plug-in action (Un)Install MSI Setup
Built plug-in action (Un)Install MSI Setup
Error during build: At least one Web Media Block must be defined before installation commands that may require media