the problem is the 1.05 wallet it doesn't sync the blockchain anymore (stuck @ 3 weeks hangs on block 38125) and without a synced wallet i cant transfer the funds
Are you sure. I sent coins from not sync Dogecoin to Swisscex - few days ago.
If you want we can test. Send me 1 HOT or less (I give you back 3 HOT - to new wallet

I think you do not recieve any coins without sync but you can send.
In this thread is solution (I don't try) that you should delete all block chain (all without wallet.dat) and then
old wallet sync again.
Remember backup wallet.dat

PS. My address is HAwvq6UJUEW89NtPvdSePgmRW56fycHcCc
and 10 to my new 1.10 wallet so i will see wat will happen i always asumed blockchains had to be in sync