I-Mate k-Jam ROM on MDA Vario or XDA Mini S: possible?

[franzdav]

Hi,
is possible to install a ROM of another producer on a HTC Phone?

Example I have a HTC Wizard marked MDA Vario or XDA Mini S with german language and I would to instal ROM of I-Mate k-Jam with italian or WWE language.

Thank you for you help

p.s. Are there any possibility of damage on installing ROM on HTC Phone? Can I restore original ROM everytime? Thanks