CAPE CANAVERAL, Fla. -- Let the unpacking begin.

STS-111

For complete launch to landing coverage and the most up-to-date news about this assembly mission to the International Space Station click here.

With Endeavour's arrival Friday at the International Space Station, the 10 humans now in orbit have only eight days to move nearly three tons of equipment and supplies from the shuttle to the outpost.

The effort began moments after hatches between the two ships were opened when crewmembers could be seen on NASA TV floating two spacesuits from Endeavour to the station's Quest airlock.

And by the end of the work day Friday, the fresh Expedition Five crew of Valery Korzun, Sergei Treschev and Peggy Whitson are to officially take up residence in the station, relieving the Expedition Four crew of Yuri Onufrienko, Dan Burcsh and Carl Walz.

But the full cargo transfer operation won't begin in earnest until Saturday, after Endeavour commander Ken Cockrell uses the shuttle's robot arm to install an Italian-made moving van to the side of the station's Unity node.

Known as Leonardo, the $150 million multi-purpose logistics module is to be lifted from the shuttle's cargo bay at 9:03 a.m. EDT (1303 GMT) Saturday and temporarily bolted to the side of a free hatch on the Unity node at 10:13 a.m. EDT (1413 GMT).

It will take about eight hours for the crew to make sure Leonardo is firmly attached, powered up, pressurized and its hatches opened.

And then the race will be on to unload some 200 items that includes two new science racks for the Destiny laboratory, as well as food and clothing for the new Expedition Five crew, who will be spending the next five months aboard the complex.

"It's like having the movers show up at your house with 200 boxes," Cockrell said before the flight. "Those boxes are going to be coming out of the module really fast, and we've got to keep detailed track of what gets transferred and where it goes on the station so they can find it later."

Flight controllers predict the module will be emptied by late Monday, and the real challenge will begin: Load up Leonardo with another 100 items or so of equipment that is no longer needed, completed experiments, as well as bags and bags of garbage.

"So, it's just a huge moving process. Just like when the Bekins man shows up," Cokrell said.

Loaded with its refuse, Leonardo is to be returned to Endeavour's cargo bay on June 14 for a ride home to Earth.

Cockrell also was instrumental in making sure Endeavour arrived at the station on Friday, manually flying the orbiter to its 12:25 p.m. EDT (1625 GMT) docking with the multinational complex.

Delays in firmly securing the spaceplane and the station together bumped the hatch opening and welcome ceremony to 3:08 p.m. EDT (1908 GMT).

Also planned during Endeavour's stay: Staging three spacewalks from the station's Quest airlock, which will help enable future station assembly operations using the station's Canadarm2.

This 14th visit of a space shuttle to the station is scheduled to end with an undocking on June 15 at 10:32 a.m. EDT (1432 GMT).

Endeavour's two-day trip home to Florida should culminate with a landing at the Kennedy Space Center on June 17 at 11:49 a.m. EDT (1549 GMT).