John Collins admits that Fulham still have a weakness in front of goal.
The Whites managed a 1-0 victory of Greek side Egaleo on Saturday who finished 10th in the Greek League last season.
Speaking after the match Collins said: "Scoring goals is something we have to improve. It was our weakness last year and is something we're aware of.
"We're working hard and will continue to work hard to try and improve it.
"We've got the players here who can score the goals, and it's just a matter of building confidence, getting a few lucky goals and taking it from there."
Fulham have only conceded once in their three InterToto fixtures, and an impressed Collins added: "We didn't concede a goal which is important in Europe. We had a few chances, but did not take them, but we persevered and got what we deserved. A win is a win."
The second leg is in Panathinaikos' stadium on Saturday and should Fulham progress they should meet FC Sochaux-Montbeliard of France - who they lost to in a pre-season friendly last year.
As for the new campaign, Collins said: "You've always got to strive to do better than the season before, and that's what we're doing. Hopefully we can get into Europe through the Premiership and avoid the InterToto next season."