In the Crash Analyser Import Wizard, you have to define either the symbol files or map files or both of them. Defining image files is optional.
When you create an image, symbol files are generated automatically. Symbol files contain the binary structure of an image, which is needed for producing an analysis file. You can find a symbol file for example from \epoc32\rombuild\<device>\core.
If you have defined symbol files, you can define also map files and image files.
If you need to define map files, you can select the Map files folder option to define the location of map files, or you can select MapFiles.zip option if you want to provide a ZIP file containing the map files. If you choose the SDK Map files folder option, the Crash Analyser Import Wizard checks which SDKs you have installed in Carbide.c++, and lists the directories of each SDK which contain map files. Choose the directory you want. If you do not want to define any map files, then select the No map files option.
The following image file types can be selected in the Import Wizard. You can also select more that one type at the time.
All the files (.fpsx, .Cxx, .Vxx, .img) refer to flash image files. Usually only one / few of them are needed, the extension just differs in different environments. The files are the ones that are flashed to phone e.g. with Phoenix tool. The image files are not absolutely necessary but they enable the analyser to do more precise decoding than just symbol files.
Different environments put these files to different locations, common locations under SDK root are for example \epoc32\rombuild and \Rom_images_2009. If you have not flashed your development phone yourself, it may be difficult to find the original flash images anywhere. Most of flash files available can be found from Notes DCT5 database, but the decoding files must match the flash image in phone exactly. Only reliable way is to flash a certain image first and use flash image for decoding only for crashes from that image.
OST dictionaries are XML files generated by TraceCompiler. The files are used to translate the binary trace to human-readable format. The files are located in your environment under \epoc32\ost_dictionaries.