The Slovenian international midfielder will join us from Red Star Belgrade once work permit formalities are concluded.
Capped 39 times and a key player for his country, Milenko said last week: "This is a big club. I knew that before I even came here. It's a special club here in England.
"I am very, very happy. I've looked around the ground, the stadium is beautiful, nice fans, every game here is full."
His full attention is now with Slovenia and the World Cup in Japan and South Korea.
A superstar in Slovenia after scoring the vital goal against Ukraine to qualify for Euro 2000, Milenko was at it again when it mattered when he scored in the World Cup play-off against Romania last November.
Slovenia face Spain, Paraquay and South Africa in Group B and kick-off against the highly-fancied Spanish on June 2 - just under a month away.
"We start our work for the World Cup on May 8," said Milenko. "We don't expect a lot for this World Cup. We just want to play well.
"If we lose to Spain, okay, they are a very good national team but we think we can play well against Paraguay and South Africa. We have a chance to be second and we hope to reach the knockout stage."
As for that goal to reach Euro 2000, Milenko recalled: "This moment is the best in my career.
"It was a very important goal for Slovenia because it meant we went to the European Championship. It is one time in a life a player makes a goal like this."
After a flying visit to the Lane to agree a four-year deal, Milenko Acimovic has jetted home to prepare for the World Cup.