For issues specific to Microchip's PICmicro® MCUs, including compilers (e.g. HI-TECH PICC & PICC-18, Microchip MPLAB®-C18) and IDEs (e.g. Microchip MPLAB®).
You can probably do just fine by referencing the Salvo v3 manual (online) and reading the .txt files that are in the example projects. Those text files explain the differences between Salvo v3 and Salvo 4, which are relatively easy to learn.