Sheet metal building...How to..??

[Steamtrains]

Fool that I am...I went and bought a corrugated metal building kit, but havent the faintest idea as to how to go about putting it together. The instructions mention some kind of flux/solder mix that can be used by applying this flux and taking the soldering iron to it.
Anyone have any experience/tips with this kind of building..?? Sure would like some input before I botch the whole thing up....