I can't help with the main problem but I can supply some information on ChangeFSI. The version of ChangeFSI supplied with Virtual Acorn probably originated from the version developed for RiscOS 3.0, 3.1 and 3.11. This version never had support for JPEG saving.
Later versions of ChangeFSI were supplied for RiscOS 3.5 and designed to run on RiscPCs. These versions have JPEG save support but will not run on earlier versions on RiscOS as this lacks the SWI codes required - hence the error message.
In my experience, there is little or nothing that can be done to persuade later versions of ChangeFSI work on earlier versions of RiscOS and as Virtual A5000 uses RiscOS 3.11, the problem at first seems insurmountable.
However, it is a long time since I tried - and I have not tried running the later versions of the colourtrans or sprite rendering modules on RiscOS 3.11...these may work and provide the SWI codes...I am guessing that they won't, has anyone tried recently? The modules in the ToolBox in !System are worth a look...
If you can get Red Squirrel to work as a RiscPC, then the later version of ChangeFSI should work...
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