LoadRunner 11.52 AutoCorrelation Error for parameter "Siebel_SWEVLC" when using Siebel-Web protocol

Hi,

I am a newbie and using auto-correlation in Loadrunner-Siebel. I am getting the below error:

Action.c(101): Error -26377: No match found for the requested parameter "Siebel_SWEVLC". Check whether the requested boundaries exist in the response data. Also, if the data you want to save exceeds 1024 bytes, use web_set_max_html_param_len to increase the parameter size [MsgId: MERR-26377]

code:

web_reg_save_param("Siebel_SWEVLC", 
        "LB/IC=`cks`", 
        "RB/IC=`", 
        "Ord=1", 
        "Search=Body", 
        //"RelFrameId=1.2.1", 
        LAST);

If you can help me in getting rid of this error and also proide some nice guide to avoid such errors and steps for making correlation work in Seibel, that would be helpful.

Thanks,

Gunjan