if the pope doesn't believe the Bible then it is the pope himself who has proclaimed what he is or in that case, isn't.
If you don't believe Genesis 1:1, you sure don't believe John 3:16.
I am not a Catholic...but I am willing to bet, that the Pope, has a much greater knowledge of the Bible, than you do(true, I dont know you or your background, but I do know that the Pope has studied the Bible in great remarkable detail, and no doubt has access to great Biblical scholars, as well as access of great scientific minds)...
If the Pope, with all his knowledge, with his access to experts, can say that the scientific evidence supports evolution, while still maintaining that it was God, who put the whole thing in motion, well, thats good enough for me...
You have your 'interpretation', of what certain Biblical passages say, and millions of others have a different 'interpretation' of those same passages...just take a look sometime on any of the religious threads that are on FR...sometimes those folks cannot even agree on the meaning of a simple word like 'brother', 'sister', 'all', 'day', 'year' and on and on...if people can honestly disagree about the meaning of a single word in the Bible, there will be even more disagreement on whole passages...
You cannot prove that your 'interpretation' of the Bible is correct and mine is wrong, nor can I prove that my 'interpretation' of the Bible is correct and yours is wrong...
But I do like to rely on scholars of the Bible, and even those scholars disagree...I believe the Pope to be a scholar of the Bible, and as such I stand with him on the ability of evolution and belief in God to be compatible...
You may not agree with that, and thats a choice you make...
What I detest, is when mere humans take it upon themselves to condemn others to hell, merely because they have a different 'interpretation' of what is said in the Bible...I am not saying that you yourself have done such a thing, but there are enough ID/Creationist posters who have done exactly that...in their pride and their arrogance, they have chosen to speak for God in deciding who goes to hell and who does not...I was not aware that God appointed special people on earth today, who can actually devine where my or anyone elses actual destiny after death may be...