1)
What is "va'Ani"?
1.
Rashi: It is an Aniyah (boat).
2.
Malbim: It is a general term that can mean many boats 1 , like "va'Yhi Li Shor v'Chamor" (Bereishis 32:6).
2)
Why was Shlomo in Etziyon Gever? It is in Eretz Edom (Devarim 2:8, Divrei ha'Yamim II, 8:17)!
1.
Radak, Malbim: He conquered Etziyon Gever and Eilos (Divrei ha'Yamim II, 8:17).
3)
Why does it say "Asher Es Eilos"?
1.
Radak: It is Etziyon Gever near Eilos. It seems that there was another Etziyon Gever.
