This is accurateOK, so resetting a bit, am I right in thinking the situation at the moment is that you have a Focusright interface, presumably plumbed into your PC and appropriate software, but nothing to playback from whatever software you are using.
So you either need powered speakers, or else an amplifier and speakers. Bearing in mind your budget situation you are probably not immediately in the market for a decent pair of powered studio monitors. So you need an amplifier.
The first questions is what were those speakers connected to? Do you still have it? Does it have an Aux input with a pair of phono sockets? If so that should function at a basic level until you are ready for better. You'll then need a couple of TRS (1/4in stereo jack) to phono cables.
If you haven't already got something then at the budget end of the game any half decent stereo amplifier with an input for a separate tape player, cd player or "Aux", using phono sockets will do. You can usually get something operational very cheap and secondhand. If it comes with reasonable speakers so much the better, or you can use these Aiwas. You'll need the same cables, then you should be able to make sounds.
Obviously the better the gear you can find the better it will be, but a half decent old school stereo system will be usable and beat the hell out of nothing.
I see stereo receivers at thrift stores all the time for cheap. Just be aware those speakers don't handle a lot of power so don't go feeding them a ton of wattage.