Now I have PPTP client setup successfully.
But I want all client PC port 80 / 443 (in my network) to redirect connection to PPTP client.
I also have Mangle/Queue Tree to limit bandwidth.
What should I do now to make it work?
Not a respond to your question, but do you relay need old, obsolete, not encrypted, not secure PPTP VPN?
You should change to a better, newer VPN solution like L2TP/IPsec or SSTP.