PLT OF A BEECH BE58 FAILED TO FOLLOW THE ILS APCH PROC TO CLRED CAUSING THE TWR TO SEND ANOTHER ACFT AROUND SINCE IT WAS CLOSING ON RPTR.

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I WAS CLRED FOR THE APCH BY CTR AND ASKED TO MAINTAIN 150 KTS UNTIL LIMA. I MISUNDERSTOOD THEM TO SAY LOONY; WHICH WAS GS INTERCEPT. AROUND 4 MI OUT; TWR ASKED ME TO BREAK OFF THE APCH. WHEN I ASKED WHY; THEY SAID THE PLANE IN BACK OF ME WAS CATCHING UP. I TOLD THEM I WOULD SPD IT UP AND INCREASED MY SPD. I CONTINUED MY APCH AND CALLED TWR SEVERAL TIMES TO ASK PERMISSION TO LAND AND CONTINUE WITHOUT AN ANSWER. THERE WAS CONVECTIVE ACTIVITY SHOWING ON MY STORMSCOPE BOTH L AND R AND I WAS CONCERNED TO BE GOING UP INTO THE STORM. THE TWR ASKED ME AT 1000 FT TO CONTACT APCH; AND I ASKED WHY WITHOUT AN ANSWER; AND ASKED TWR COULD I LAND. AT THIS POINT; I WAS 2 MI FROM THE THRESHOLD. THE TWR THEN CLRED ME TO LAND. UPON LNDG; THE CTLR ASKED ME TO CALL CTR. WHEN I TALKED TO CTR THEY INFORMED ME THAT THE PLANE IN BACK OF ME HAD TO GO AROUND. I TOLD THEM THE CONFUSION AND THEN FIGURED OUT THAT THERE WAS A DIFFERENT SPOT I WAS TO CONTINUE MY SPD OF 150 KTS. I ALSO TOLD THEM OF MY CONCERN ABOUT CONVECTIVE ACTIVITY. THEY TOLD ME THEY WOULD CONTACT TWR AND DISCUSS THIS WITH THEM AND CALL ME IF THERE WERE ADDITIONAL QUESTIONS. I SHOULD HAVE READ THE CHART MORE CAREFULLY.