which were the editions it had?
British and Australian editions.
Venture Science Fiction
In December 1959, a British edition of "F&SF" appeared from Atlas Publishing and Distributing Limited, a London-based publisher. Atlas had published a British edition of "Analog" (formerly "Astounding Science Fiction") since 1939. In 1963 the abolition of import restrictions meant that "Analog" could be directly imported, and since there was no longer a need for a British edition, Atlas decided to start a new sf magazine to replace it. 
who is the author of venture science fiction? It was an American digest-size science fiction magazine. when was it published? From 1957 to 1958. which company or organization used to publish it? Lawrence E. Spivak.
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Venture Science Fiction [SEP] British and Australian editions
In December 1959, a British edition of "F&SF" appeared from Atlas Publishing and Distributing Limited, a London-based publisher. Atlas had published a British edition of "Analog" (formerly "Astounding Science Fiction") since 1939. In 1963 the abolition of import restrictions meant that "Analog" could be directly imported, and since there was no longer a need for a British edition, Atlas decided to start a new sf magazine to replace it. The new "Venture Science Fiction" drew many of its stories from the US version, but it also reprinted from the late 1950s "F&SF", since there had been no British edition of that magazine until the end of 1959.