that heli in the picture will not tolerate wind ... so dont take it outdoors or any place with wind stronger that small fan
there should be some trim tabs/buttons on the controller ... just push/press a few click of elevator trim forward and it should be ok

the design of the copter u posted is known as a coaxial
ie. top and bottom fixed pitch propellers
by design those cannot handle windy conditions

i would not waste time and $$$ trying to repair that copter
parts will be hard to get and expensive

the new one u listed will handle wind much better and fly better
but flying it will be slightly harder than your old coaxial copter

i would just get the v911 and learn on that
it can handle some wind and quite sturdy to crashes

looks like the new one listed has a 45 degree flybar, so most likely it will fly quite similar to a coax, just a bit better. as oppose to something like a HBFP.
small helis are a little more twitchy and sensitive. bigger ones, because of the weight is less twitchy and more stable, which is why it can handle wind better.

also do note that this hobby requires spare parts. so go with something that you can easily find spare parts. else, you'll be grounded after just a few crashes. remember, spare parts are a must, upgrade parts are optional. definitely true for any beginners. so getting something from walkera or esky is another option as oppose to getting some brand-less one, as these 2 brands have easily accessible parts should you need any, especially in the klang valley.