if alcohol is haram to islam, the why is it promised as rewards for the righteous in heaven?

It's not alcohol per se. It's drunkenness. The alcohol in heaven doesn't cause drunkenness, and indeed, doesn't cause hangovers. Given that a hangover is a symptom of alcohol withdrawal, one might infer that the wine in heaven also doesn't cause dependency.

Qur'an 47:15

Therein are rivers of water unpolluted, and rivers of milk whereof the flavour changeth not, and rivers of wine delicious to the drinkers, and rivers of clear-run honey...

Qur'an 37:45-47

45 A cup from a gushing spring is brought round for them,

46 White, delicious to the drinkers,

47 Wherein there is no headache nor are they made mad thereby.

Qur'an 83:25-28

25 They are given to drink of a pure wine, sealed,

26 Whose seal is musk - for this let (all) those strive who strive for bliss -

27 And mixed with water of Tasnim,

28 A spring whence those brought near (to Allah) drink.

There are other verses about wine in heaven, but you get the point. Sadly, there's no mention of beer. I guess you'll have to settle for magic milk and magic honey, or just plain old magic water.

The hypocrisy of the prophet's words expose the false religion. Sooner of later, a liar will become entangled in his own words. Alcohol consumption is not possible in the spirit realm. The same is true for the 72 virgins promised to jihadist martyrs. Their heaven is really just an Earthly realm filled with debauchery and excess. A false goal for a false religion.

Alcohol is only forbidden in this life - as the the negatives of it outweigh the benefits. It is merely a test.

It is exactly the same as Prophet Adam's test.

islam has nothing TO DO WITH THE TRUE RELIG OF JESUS AND WHAT ARE U SPEAKING OF> ANY BIBLE REFS?

Because beer and bacon, if that isn't in Heaven, it ain't Heaven.