i'm running OS 10.13.6....

[jasperilla]

what version of scribus should i use? thanks so much

[a.l.e]

your OS hasn't got any updates for the last four years:

you should not connect it to the internet.

this having been said, scribus-1.6.1.dmg should run on your computer.
you can get it from:

https://sourceforge.net/projects/scribus/files/scribus/1.6.1/