If I understand correctly, everything is mostly the same except that the lines where Allies and Soviets meet are around a 100 miles east. Not much in postwar occupation is changed except the Allies could conceivably reach the Oder and Patton probably liberates Prague when the war ends in May/June.
Unless things are very different in January 1945, the Yalta Agreement still confirms the same occupation zones.
Whether or not Berlin falls to the Western Allies depends on if Eisenhower believes the city can be taken with low casualties. If it can, Eisenhower and Marshall may think it worth the political risk of angering Stalin. If not, likely Ike calls a halt before he reaches fortified lines. He tells Stalin the Western Allies are prepared to make a combined assault on Berlin once the Red Army arrives. In the meantime, effort is made to push forward to other areas.
Another possible departure is that the US is able to seize more of the German atomic scientists and uranium, giving a slight setback to the Soviet Atomic Program. Most of the good technical research and scientists the Soviets nabbed happened to be in the areas of Berlin that would become the western sector (Manfred von Ardenne's private laboratory Forschungslaboratorium für Elektronenphysik in Berlin-Lichterfelde, the Siemens Research Laboratory II in Berlin-Siemensstadt, the Kaiser Wilhelm Institute for Physical Chemistry and Electrochemistry in Berlin-Dahlem, and the Physical Chemistry Institute at the Technische Hochschule Berlin in Berlin-Charlottenburg). The US and British might take them outright. If not, the Soviets will have zero time to exploit the area before the Yanks and Brits show up to occupy their zones. A lot of the German scientists taken by the Soviets to work on nuclear research (whether on the bomb itself, or one of the ancillary projects) will be in Allied custody.
With the Allies so close, it'd be interesting to see if the Americans make an attempt to take the one German atomic research center that won't be in their sector - the Auergesellschaft plant in Oranienburg which processed uranium. IOTL, on March 15, 1945 the 8th Air Force bombed it specifically to obstruct the Russians from using it.
This won't stop the Soviets from developing a bomb, but it will put a delay in. Maybe one or two years. If Stalin doesn't have a bomb in 1950, does he give the OK to the Korean War?
Most things won't change except that the Czech portion of Czechoslovakia won't be occupied by the Red Army. That means there won't be gangs of local Communists who set themselves up as local police. That maybe means that the Communists aren't as successful taking over all levels of the police when Benes appoints them as Minister of the Interior. He'll still do that however, giving them some leverage. The Czech coup could still very well happen, but there is a chance things are different enough that the anti-Communists are able to prevent it.
