Newbie guide?

Hi, i´m absolutely new here. First at all, i'm sorry for my poor english (i'm from Argentina). I downloaded Ubooquity on my Windows PC, with the goal of read my comics and ebooks in my android tablet.  So I downloaded Kuboo, the android client for Ubooquity. From the admin screen i hav comics and ebooks folders added OK, but I cant connect from the android client. My PC is connected to the router with an UTP wire, LAN mode. My tablet connects it to Wlan, or WIFI. How I setup the server? Any  help? I dont have so much idea of networks and this stuff.. Sory, again, for my english..  And thanks!!! :)