I so did it.. not even last few days just day B4 yesterday...
firstly I installed the yappari 0.0.3 version from meagoexpert.com
it dint work I was so frustrated bcz I donated Tglal as he said he was making it for both N900 and N9... and he ditched us.. I thought it was a hoax... but I read the thread ( I kindda skipped and downloaded yappari lolz)
thats when I found out... there is .java whats app version
took me a couple of tries. using this method
http://talk.maemo.org/showthread.php...va+easy+method

at first I was getting error that I have used a lot of call registry method on bluestack... then I tried again later and it worked

I found out the regstep value should be 1

and do not copy and paste there make sure u copy through ur cell phone inbuilt notes



firstly I installed the yappari 0.0.3 version then I found about this thread.. downloaded the 0.0.17 version...
the new yappari asked for my cell no.
I inserted my cell no. it dint accept. as my country code was there
later I removed the + sign from the country code in yappari which is already present there and It worked

I am no expert but it worked for me and I am happy for that....

Hats off to you...